79361195391 has 32 divisors (see below), whose sum is σ = 121394124800. Its totient is φ = 51188397120.

The previous prime is 79361195377. The next prime is 79361195443. The reversal of 79361195391 is 19359116397.

79361195391 is a `hidden beast` number, since 7 + 9 + 3 + 61 + 195 + 391 = 666.

It is not a de Polignac number, because 79361195391 - 2⁵ = 79361195359 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79361195321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4526955 + ... + 4544451.

It is an arithmetic number, because the mean of its divisors is an integer number (3793566400).

Almost surely, 2^79361195391 is an apocalyptic number.

79361195391 is a deficient number, since it is larger than the sum of its proper divisors (42032929409).

79361195391 is a wasteful number, since it uses less digits than its factorization.

79361195391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22956 (or 22950 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 54.

The spelling of 79361195391 in words is "seventy-nine billion, three hundred sixty-one million, one hundred ninety-five thousand, three hundred ninety-one".