90973365642 has 48 divisors (see below), whose sum is σ = 197966131272. Its totient is φ = 30192814080.

The previous prime is 90973365617. The next prime is 90973365733. The reversal of 90973365642 is 24656337909.

90973365642 is a `hidden beast` number, since 9 + 0 + 9 + 73 + 3 + 6 + 564 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22502700081 + 68470665561 = 150009^2 + 261669^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5017938 + ... + 5036034.

Almost surely, 2^90973365642 is an apocalyptic number.

90973365642 is an abundant number, since it is smaller than the sum of its proper divisors (106992765630).

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

90973365642 is a wasteful number, since it uses less digits than its factorization.

90973365642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19303 (or 19300 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 90973365642 in words is "ninety billion, nine hundred seventy-three million, three hundred sixty-five thousand, six hundred forty-two".