Yottaton vs. Septillion — What's the Difference?
Difference Between Yottaton and Septillion
A measure of the strength of an explosion or a bomb, based on how many septillion tons of TNT would be needed to produce the same energy.
The cardinal number equal to 1024.
Chiefly British The cardinal number equal to 1042.
A trillion trillion: 1 followed by 24 zeros, 1024.
A billion quintillion: 1 followed by 42 zeros, 1042.
According to the French method of numeration (which is followed also in the United States), the number expressed by a unit with twenty-four ciphers annexed. According to the English method, the number expressed by a unit with forty-two ciphers annexed. See Numeration.