79776921080 has 32 divisors (see below), whose sum is σ = 188945341200. Its totient is φ = 30231254016.

The previous prime is 79776921073. The next prime is 79776921109. The reversal of 79776921080 is 8012967797.

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, 52484057 + ... + 52485576.

Almost surely, 2^79776921080 is an apocalyptic number.

It is an amenable number.

79776921080 is an abundant number, since it is smaller than the sum of its proper divisors (109168420120).

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

79776921080 is a wasteful number, since it uses less digits than its factorization.

79776921080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104969663 (or 104969659 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 79776921080 in words is "seventy-nine billion, seven hundred seventy-six million, nine hundred twenty-one thousand, eighty".