79667508916 has 6 divisors (see below), whose sum is σ = 139418140610. Its totient is φ = 39833754456.

The previous prime is 79667508863. The next prime is 79667508919. The reversal of 79667508916 is 61980576697.

It can be written as a sum of positive squares in only one way, i.e., 62975902500 + 16691606416 = 250950^2 + 129196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79667508919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9958438611 + ... + 9958438618.

Almost surely, 2^79667508916 is an apocalyptic number.

It is an amenable number.

79667508916 is a deficient number, since it is larger than the sum of its proper divisors (59750631694).

79667508916 is a wasteful number, since it uses less digits than its factorization.

79667508916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19916877233 (or 19916877231 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 79667508916 in words is "seventy-nine billion, six hundred sixty-seven million, five hundred eight thousand, nine hundred sixteen".