80657379604 has 24 divisors (see below), whose sum is σ = 141887711168. Its totient is φ = 40118569920.

The previous prime is 80657379577. The next prime is 80657379653. The reversal of 80657379604 is 40697375608.

It is a happy number.

It is a super-2 number, since 2×80657379604² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538417 + ... + 671719.

Almost surely, 2^80657379604 is an apocalyptic number.

It is an amenable number.

80657379604 is a deficient number, since it is larger than the sum of its proper divisors (61230331564).

80657379604 is a wasteful number, since it uses less digits than its factorization.

80657379604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134095 (or 134093 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 80657379604 in words is "eighty billion, six hundred fifty-seven million, three hundred seventy-nine thousand, six hundred four".