90911020192 has 48 divisors (see below), whose sum is σ = 180978295680. Its totient is φ = 44949549312.

The previous prime is 90911020183. The next prime is 90911020199. The reversal of 90911020192 is 29102011909.

It is not an unprimeable number, because it can be changed into a prime (90911020199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2317413 + ... + 2356315.

It is an arithmetic number, because the mean of its divisors is an integer number (3770381160).

Almost surely, 2^90911020192 is an apocalyptic number.

It is an amenable number.

90911020192 is a deficient number, since it is larger than the sum of its proper divisors (90067275488).

90911020192 is a wasteful number, since it uses less digits than its factorization.

90911020192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39725 (or 39717 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 90911020192 in words is "ninety billion, nine hundred eleven million, twenty thousand, one hundred ninety-two".