90804108942 has 20 divisors (see below), whose sum is σ = 203468466696. Its totient is φ = 30268036260.

The previous prime is 90804108847. The next prime is 90804108961. The reversal of 90804108942 is 24980140809.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 280259434 + ... + 280259757.

Almost surely, 2^90804108942 is an apocalyptic number.

90804108942 is an abundant number, since it is smaller than the sum of its proper divisors (112664357754).

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

90804108942 is a wasteful number, since it uses less digits than its factorization.

90804108942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560519205 (or 560519196 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 90804108942 in words is "ninety billion, eight hundred four million, one hundred eight thousand, nine hundred forty-two".