79686362357 has 6 divisors (see below), whose sum is σ = 92696380758. Its totient is φ = 68302596264.

The previous prime is 79686362323. The next prime is 79686362369. The reversal of 79686362357 is 75326368697.

It can be written as a sum of positive squares in only one way, i.e., 75168640561 + 4517721796 = 274169^2 + 67214^2 .

It is not a de Polignac number, because 79686362357 - 2⁶ = 79686362293 is a prime.

It is a super-3 number, since 3×79686362357³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79686362357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79686362317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 813126098 + ... + 813126195.

It is an arithmetic number, because the mean of its divisors is an integer number (15449396793).

Almost surely, 2^79686362357 is an apocalyptic number.

It is an amenable number.

79686362357 is a deficient number, since it is larger than the sum of its proper divisors (13010018401).

79686362357 is a wasteful number, since it uses less digits than its factorization.

79686362357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626252307 (or 1626252300 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 62.

The spelling of 79686362357 in words is "seventy-nine billion, six hundred eighty-six million, three hundred sixty-two thousand, three hundred fifty-seven".