90499917204 has 36 divisors (see below), whose sum is σ = 228797828896. Its totient is φ = 30162135888.

The previous prime is 90499917181. The next prime is 90499917251. The reversal of 90499917204 is 40271999409.

It is a tau number, because it is divible by the number of its divisors (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, 61407 + ... + 429849.

Almost surely, 2^90499917204 is an apocalyptic number.

It is an amenable number.

90499917204 is an abundant number, since it is smaller than the sum of its proper divisors (138297911692).

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

90499917204 is a wasteful number, since it uses less digits than its factorization.

90499917204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375276 (or 375271 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 90499917204 in words is "ninety billion, four hundred ninety-nine million, nine hundred seventeen thousand, two hundred four".