72785023108 has 24 divisors (see below), whose sum is σ = 148955398592. Its totient is φ = 30468148704.

The previous prime is 72785023079. The next prime is 72785023177. The reversal of 72785023108 is 80132058727.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 30225135 + ... + 30227542.

Almost surely, 2^72785023108 is an apocalyptic number.

It is an amenable number.

72785023108 is an abundant number, since it is smaller than the sum of its proper divisors (76170375484).

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

72785023108 is a wasteful number, since it uses less digits than its factorization.

72785023108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60452731 (or 60452729 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 72785023108 in words is "seventy-two billion, seven hundred eighty-five million, twenty-three thousand, one hundred eight".