octillion

noun, plural oc·til·lions, (as after a numeral) oc·til·lion.

1. a cardinal number represented in the U.S. by 1 followed by 27 zeros, and in Great Britain by 1 followed by 48 zeros.

adjective

2. amounting to one octillion in number.

noun

1. (in Britain and Germany) the number represented as one followed by 48 zeros (10 48)
2. (in the US, Canada, and France) the number represented as one followed by 27 zeros (10 27)