90232703712 has 72 divisors (see below), whose sum is σ = 256676185584. Its totient is φ = 30068550144.

The previous prime is 90232703653. The next prime is 90232703777. The reversal of 90232703712 is 21730723209.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952108 + ... + 1042580.

It is an arithmetic number, because the mean of its divisors is an integer number (3564947022).

Almost surely, 2^90232703712 is an apocalyptic number.

It is an amenable number.

90232703712 is an abundant number, since it is smaller than the sum of its proper divisors (166443481872).

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

90232703712 is a wasteful number, since it uses less digits than its factorization.

90232703712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93952 (or 93941 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The spelling of 90232703712 in words is "ninety billion, two hundred thirty-two million, seven hundred three thousand, seven hundred twelve".