72724571004 has 24 divisors (see below), whose sum is σ = 169695025920. Its totient is φ = 24240900784.

The previous prime is 72724570967. The next prime is 72724571021. The reversal of 72724571004 is 40017542727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877927 + ... + 957185.

It is an arithmetic number, because the mean of its divisors is an integer number (7070626080).

Almost surely, 2^72724571004 is an apocalyptic number.

It is an amenable number.

72724571004 is an abundant number, since it is smaller than the sum of its proper divisors (96970454916).

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

72724571004 is a wasteful number, since it uses less digits than its factorization.

72724571004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155729 (or 155727 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 72724571004 in words is "seventy-two billion, seven hundred twenty-four million, five hundred seventy-one thousand, four".