90919100910 has 32 divisors (see below), whose sum is σ = 238042737792. Its totient is φ = 22040994080.

The previous prime is 90919100891. The next prime is 90919100933. The reversal of 90919100910 is 1900191909.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137755884 + ... + 137756543.

It is an arithmetic number, because the mean of its divisors is an integer number (7438835556).

Almost surely, 2^90919100910 is an apocalyptic number.

90919100910 is an abundant number, since it is smaller than the sum of its proper divisors (147123636882).

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

90919100910 is a wasteful number, since it uses less digits than its factorization.

90919100910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275512448.

The product of its (nonzero) digits is 6561, while the sum is 39.

The spelling of 90919100910 in words is "ninety billion, nine hundred nineteen million, one hundred thousand, nine hundred ten".