72867783924 has 48 divisors (see below), whose sum is σ = 203448517440. Its totient is φ = 22420856160.

The previous prime is 72867783889. The next prime is 72867783931. The reversal of 72867783924 is 42938776827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25948662 + ... + 25951469.

It is an arithmetic number, because the mean of its divisors is an integer number (4238510780).

Almost surely, 2^72867783924 is an apocalyptic number.

It is an amenable number.

72867783924 is an abundant number, since it is smaller than the sum of its proper divisors (130580733516).

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

72867783924 is a wasteful number, since it uses less digits than its factorization.

72867783924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51900157 (or 51900149 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 63.

The spelling of 72867783924 in words is "seventy-two billion, eight hundred sixty-seven million, seven hundred eighty-three thousand, nine hundred twenty-four".