72785023233 has 16 divisors (see below), whose sum is σ = 105526512000. Its totient is φ = 44355919104.

The previous prime is 72785023219. The next prime is 72785023273. The reversal of 72785023233 is 33232058727.

It is a happy number.

It is not a de Polignac number, because 72785023233 - 2⁴ = 72785023217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72785023273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9055608 + ... + 9063641.

It is an arithmetic number, because the mean of its divisors is an integer number (6595407000).

Almost surely, 2^72785023233 is an apocalyptic number.

It is an amenable number.

72785023233 is a deficient number, since it is larger than the sum of its proper divisors (32741488767).

72785023233 is a wasteful number, since it uses less digits than its factorization.

72785023233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18119368.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 72785023233 in words is "seventy-two billion, seven hundred eighty-five million, twenty-three thousand, two hundred thirty-three".