79932173680 has 40 divisors (see below), whose sum is σ = 190164226032. Its totient is φ = 31229313024.

The previous prime is 79932173669. The next prime is 79932173719. The reversal of 79932173680 is 8637123997.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 11614609 + ... + 11621488.

Almost surely, 2^79932173680 is an apocalyptic number.

It is an amenable number.

79932173680 is an abundant number, since it is smaller than the sum of its proper divisors (110232052352).

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

79932173680 is a wasteful number, since it uses less digits than its factorization.

79932173680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23236153 (or 23236147 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 79932173680 in words is "seventy-nine billion, nine hundred thirty-two million, one hundred seventy-three thousand, six hundred eighty".