72879927104 has 28 divisors (see below), whose sum is σ = 144943258500. Its totient is φ = 36358791168.

The previous prime is 72879927097. The next prime is 72879927199. The reversal of 72879927104 is 40172997827.

It can be written as a sum of positive squares in 2 ways, for example, as 55813117504 + 17066809600 = 236248^2 + 130640^2 .

It is a super-2 number, since 2×72879927104² (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 72879927104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239359 + ... + 1296830.

Almost surely, 2^72879927104 is an apocalyptic number.

It is an amenable number.

72879927104 is a deficient number, since it is larger than the sum of its proper divisors (72063331396).

72879927104 is a wasteful number, since it uses less digits than its factorization.

72879927104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536650 (or 2536640 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 72879927104 in words is "seventy-two billion, eight hundred seventy-nine million, nine hundred twenty-seven thousand, one hundred four".