79168968531 has 6 divisors (see below), whose sum is σ = 114355176780. Its totient is φ = 52779312348.

The previous prime is 79168968517. The next prime is 79168968547. The reversal of 79168968531 is 13586986197.

79168968531 is a `hidden beast` number, since 7 + 9 + 1 + 6 + 8 + 96 + 8 + 531 = 666.

It is not a de Polignac number, because 79168968531 - 2¹¹ = 79168966483 is a prime.

It is a super-2 number, since 2×79168968531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79168968551) 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, 4398276021 + ... + 4398276038.

It is an arithmetic number, because the mean of its divisors is an integer number (19059196130).

Almost surely, 2^79168968531 is an apocalyptic number.

79168968531 is a deficient number, since it is larger than the sum of its proper divisors (35186208249).

79168968531 is a wasteful number, since it uses less digits than its factorization.

79168968531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8796552065 (or 8796552062 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 79168968531 in words is "seventy-nine billion, one hundred sixty-eight million, nine hundred sixty-eight thousand, five hundred thirty-one".