72879394104 has 96 divisors (see below), whose sum is σ = 218051308800. Its totient is φ = 21805093440.

The previous prime is 72879394051. The next prime is 72879394121. The reversal of 72879394104 is 40149397827.

72879394104 is a `hidden beast` number, since 72 + 87 + 9 + 394 + 104 = 666.

It is a super-2 number, since 2×72879394104² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 519834 + ... + 644969.

It is an arithmetic number, because the mean of its divisors is an integer number (2271367800).

Almost surely, 2^72879394104 is an apocalyptic number.

It is an amenable number.

72879394104 is an abundant number, since it is smaller than the sum of its proper divisors (145171914696).

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

72879394104 is a wasteful number, since it uses less digits than its factorization.

72879394104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164905 (or 1164898 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 72879394104 in words is "seventy-two billion, eight hundred seventy-nine million, three hundred ninety-four thousand, one hundred four".