90133100838 has 64 divisors (see below), whose sum is σ = 220509273600. Its totient is φ = 27062462880.

The previous prime is 90133100821. The next prime is 90133100851. The reversal of 90133100838 is 83800133109.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 631306 + ... + 760797.

It is an arithmetic number, because the mean of its divisors is an integer number (3445457400).

Almost surely, 2^90133100838 is an apocalyptic number.

90133100838 is an abundant number, since it is smaller than the sum of its proper divisors (130376172762).

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

90133100838 is a wasteful number, since it uses less digits than its factorization.

90133100838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392234 (or 1392228 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 90133100838 in words is "ninety billion, one hundred thirty-three million, one hundred thousand, eight hundred thirty-eight".