79551964698 has 64 divisors (see below), whose sum is σ = 164249648640. Its totient is φ = 25673680448.

The previous prime is 79551964643. The next prime is 79551964699. The reversal of 79551964698 is 89646915597.

It is not an unprimeable number, because it can be changed into a prime (79551964699) 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, 40197073 + ... + 40199051.

It is an arithmetic number, because the mean of its divisors is an integer number (2566400760).

Almost surely, 2^79551964698 is an apocalyptic number.

79551964698 is an abundant number, since it is smaller than the sum of its proper divisors (84697683942).

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

79551964698 is a wasteful number, since it uses less digits than its factorization.

79551964698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its digits is 146966400, while the sum is 69.

The spelling of 79551964698 in words is "seventy-nine billion, five hundred fifty-one million, nine hundred sixty-four thousand, six hundred ninety-eight".