80910761256 has 96 divisors (see below), whose sum is σ = 237552981120. Its totient is φ = 24730704000.

The previous prime is 80910761251. The next prime is 80910761291. The reversal of 80910761256 is 65216701908.

It is not an unprimeable number, because it can be changed into a prime (80910761251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144900 + ... + 427571.

It is an arithmetic number, because the mean of its divisors is an integer number (2474510220).

Almost surely, 2^80910761256 is an apocalyptic number.

It is an amenable number.

80910761256 is an abundant number, since it is smaller than the sum of its proper divisors (156642219864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80910761256 is a wasteful number, since it uses less digits than its factorization.

80910761256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572647 (or 572640 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 80910761256 in words is "eighty billion, nine hundred ten million, seven hundred sixty-one thousand, two hundred fifty-six".