90500074732986 has 16 divisors (see below), whose sum is σ = 182757432471744. Its totient is φ = 29873811076704.

The previous prime is 90500074732939. The next prime is 90500074733053. The reversal of 90500074732986 is 68923747000509.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73220124571 + ... + 73220125806.

It is an arithmetic number, because the mean of its divisors is an integer number (11422339529484).

Almost surely, 2^{90500074732986} is an apocalyptic number.

90500074732986 is an abundant number, since it is smaller than the sum of its proper divisors (92257357738758).

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

90500074732986 is a wasteful number, since it uses less digits than its factorization.

90500074732986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146440250485.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 90500074732986 in words is "ninety trillion, five hundred billion, seventy-four million, seven hundred thirty-two thousand, nine hundred eighty-six".