72879164659 has 12 divisors (see below), whose sum is σ = 88463796624. Its totient is φ = 59751860784.

The previous prime is 72879164653. The next prime is 72879164689. The reversal of 72879164659 is 95646197827.

It is not a de Polignac number, because 72879164659 - 2³ = 72879164651 is a prime.

It is a super-2 number, since 2×72879164659² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72879164659.

It is not an unprimeable number, because it can be changed into a prime (72879164651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32332132 + ... + 32334385.

It is an arithmetic number, because the mean of its divisors is an integer number (7371983052).

Almost surely, 2^72879164659 is an apocalyptic number.

72879164659 is a deficient number, since it is larger than the sum of its proper divisors (15584631965).

72879164659 is a wasteful number, since it uses less digits than its factorization.

72879164659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64666554 (or 64666547 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The spelling of 72879164659 in words is "seventy-two billion, eight hundred seventy-nine million, one hundred sixty-four thousand, six hundred fifty-nine".