90039615630 has 64 divisors (see below), whose sum is σ = 225889689600. Its totient is φ = 22941884160.

The previous prime is 90039615629. The next prime is 90039615647. The reversal of 90039615630 is 3651693009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539295 + ... + 686234.

It is an arithmetic number, because the mean of its divisors is an integer number (3529526400).

Almost surely, 2^90039615630 is an apocalyptic number.

90039615630 is an abundant number, since it is smaller than the sum of its proper divisors (135850073970).

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

90039615630 is a wasteful number, since it uses less digits than its factorization.

90039615630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225649.

The product of its (nonzero) digits is 131220, while the sum is 42.

The spelling of 90039615630 in words is "ninety billion, thirty-nine million, six hundred fifteen thousand, six hundred thirty".