A quattuordecillion or septilliard[1] is equal to 1045 in America, or 1084 in France and Germany.[2]

In the long scale, 1045 is called septilliard, which is commonly used in France and Germany.

This number is also called pentadekillion in Russ Rowlett's Greek-based naming system.[3]

Donald Knuth calls this number penteciad, and it's equal to using the -yllion system.

Sbiis Saibian gave the name gogolcrumb, referring to the value of this number.[4]

Decimal expansion

  • 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 - short scale
  • 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000000,000,000,000 - long scale


  • There are about 41.75 quattuordecillion water molecules in all the water on the earth.[5]
  • The prefix tenapeta- multiplies by one quattuordecillion.

List of prefixed numbers derived from decillion

Name Short scale Long scale
undecillion 1036 1066
duodecillion 1039 1072
tredecillion 1042 1078
quattuordecillion 1045 1084
quindecillion 1048 1090
sexdecillion 1051 1096
septendecillion 1054 10102
octodecillion 1057 10108
novemdecillion 1060 10114


  1. Sbiis Saibian's Ultimate Finite Numbers List Part I
  2. Quattuordecillion at Wolfram MathWorld
  3. Names for Large Numbers
  4. Hyper-E Notation, Large Numbers
  5. Even Larger Numbers In Science and Astronomy - Large Numbers

See also

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