90732635604 has 72 divisors (see below), whose sum is σ = 247978759392. Its totient is φ = 27806472000.

The previous prime is 90732635573. The next prime is 90732635621. The reversal of 90732635604 is 40653623709.

90732635604 is a `hidden beast` number, since 9 + 0 + 7 + 3 + 2 + 6 + 35 + 604 = 666.

It is a super-2 number, since 2×90732635604² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 90732635604.

It is a congruent number.

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, 268734 + ... + 503669.

It is an arithmetic number, because the mean of its divisors is an integer number (3444149436).

Almost surely, 2^90732635604 is an apocalyptic number.

It is an amenable number.

90732635604 is an abundant number, since it is smaller than the sum of its proper divisors (157246123788).

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

90732635604 is a wasteful number, since it uses less digits than its factorization.

90732635604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772677 (or 772672 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 90732635604 in words is "ninety billion, seven hundred thirty-two million, six hundred thirty-five thousand, six hundred four".