79180672977 has 12 divisors (see below), whose sum is σ = 130710952320. Its totient is φ = 45246098808.

The previous prime is 79180672951. The next prime is 79180672981. The reversal of 79180672977 is 77927608197.

It is not a de Polignac number, because 79180672977 - 2²⁰ = 79179624401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 1256836079 = 79180672977 / (7 + 9 + 1 + 8 + 0 + 6 + 7 + 2 + 9 + 7 + 7).

It is not an unprimeable number, because it can be changed into a prime (79180672997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628417977 + ... + 628418102.

It is an arithmetic number, because the mean of its divisors is an integer number (10892579360).

Almost surely, 2^79180672977 is an apocalyptic number.

It is an amenable number.

79180672977 is a deficient number, since it is larger than the sum of its proper divisors (51530279343).

79180672977 is a wasteful number, since it uses less digits than its factorization.

79180672977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256836092 (or 1256836089 counting only the distinct ones).

The product of its (nonzero) digits is 18670176, while the sum is 63.

The spelling of 79180672977 in words is "seventy-nine billion, one hundred eighty million, six hundred seventy-two thousand, nine hundred seventy-seven".