80957945792 has 28 divisors (see below), whose sum is σ = 161164225296. Its totient is φ = 40349637120.

The previous prime is 80957945753. The next prime is 80957945813. The reversal of 80957945792 is 29754975908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000684 + ... + 2040747.

Almost surely, 2^80957945792 is an apocalyptic number.

It is an amenable number.

80957945792 is a deficient number, since it is larger than the sum of its proper divisors (80206279504).

80957945792 is a wasteful number, since it uses less digits than its factorization.

80957945792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041756 (or 4041746 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 65.

The spelling of 80957945792 in words is "eighty billion, nine hundred fifty-seven million, nine hundred forty-five thousand, seven hundred ninety-two".