72791504880 has 80 divisors (see below), whose sum is σ = 229478348160. Its totient is φ = 19082063104.

The previous prime is 72791504867. The next prime is 72791504909. The reversal of 72791504880 is 8840519727.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2556162 + ... + 2584481.

It is an arithmetic number, because the mean of its divisors is an integer number (2868479352).

Almost surely, 2^72791504880 is an apocalyptic number.

It is an amenable number.

72791504880 is an abundant number, since it is smaller than the sum of its proper divisors (156686843280).

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

72791504880 is a wasteful number, since it uses less digits than its factorization.

72791504880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140718 (or 5140712 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 72791504880 in words is "seventy-two billion, seven hundred ninety-one million, five hundred four thousand, eight hundred eighty".