90693877632 has 64 divisors (see below), whose sum is σ = 241104805200. Its totient is φ = 30206296064.

The previous prime is 90693877567. The next prime is 90693877657. The reversal of 90693877632 is 23677839609.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370294 + ... + 564362.

Almost surely, 2^90693877632 is an apocalyptic number.

It is an amenable number.

90693877632 is an abundant number, since it is smaller than the sum of its proper divisors (150410927568).

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

90693877632 is a wasteful number, since it uses less digits than its factorization.

90693877632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195303 (or 195291 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 60.

The spelling of 90693877632 in words is "ninety billion, six hundred ninety-three million, eight hundred seventy-seven thousand, six hundred thirty-two".