79169391654 has 16 divisors (see below), whose sum is σ = 158501862720. Its totient is φ = 26362617320.

The previous prime is 79169391617. The next prime is 79169391677. The reversal of 79169391654 is 45619396197.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6788664 + ... + 6800315.

It is an arithmetic number, because the mean of its divisors is an integer number (9906366420).

Almost surely, 2^79169391654 is an apocalyptic number.

79169391654 is an abundant number, since it is smaller than the sum of its proper divisors (79332471066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79169391654 is a wasteful number, since it uses less digits than its factorization.

79169391654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589955.

The product of its digits is 11022480, while the sum is 60.

The spelling of 79169391654 in words is "seventy-nine billion, one hundred sixty-nine million, three hundred ninety-one thousand, six hundred fifty-four".