90861523332 has 12 divisors (see below), whose sum is σ = 212010221136. Its totient is φ = 30287174440.

The previous prime is 90861523307. The next prime is 90861523349. The reversal of 90861523332 is 23332516809.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3785896794 + ... + 3785896817.

It is an arithmetic number, because the mean of its divisors is an integer number (17667518428).

Almost surely, 2^90861523332 is an apocalyptic number.

It is an amenable number.

90861523332 is an abundant number, since it is smaller than the sum of its proper divisors (121148697804).

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

90861523332 is a wasteful number, since it uses less digits than its factorization.

90861523332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571793618 (or 7571793616 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 90861523332 in words is "ninety billion, eight hundred sixty-one million, five hundred twenty-three thousand, three hundred thirty-two".