79286857269 has 16 divisors (see below), whose sum is σ = 109814992320. Its totient is φ = 50823440640.

The previous prime is 79286857241. The next prime is 79286857271. The reversal of 79286857269 is 96275868297.

It is not a de Polignac number, because 79286857269 - 2¹³ = 79286849077 is a prime.

It is a super-2 number, since 2×79286857269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79286859269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1869787 + ... + 1911720.

It is an arithmetic number, because the mean of its divisors is an integer number (6863437020).

Almost surely, 2^79286857269 is an apocalyptic number.

It is an amenable number.

79286857269 is a deficient number, since it is larger than the sum of its proper divisors (30528135051).

79286857269 is a wasteful number, since it uses less digits than its factorization.

79286857269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781780.

The product of its digits is 182891520, while the sum is 69.

The spelling of 79286857269 in words is "seventy-nine billion, two hundred eighty-six million, eight hundred fifty-seven thousand, two hundred sixty-nine".