90013640748 has 48 divisors (see below), whose sum is σ = 222458027904. Its totient is φ = 28230508800.

The previous prime is 90013640671. The next prime is 90013640767. The reversal of 90013640748 is 84704631009.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580923 + ... + 719373.

It is an arithmetic number, because the mean of its divisors is an integer number (4634542248).

Almost surely, 2^90013640748 is an apocalyptic number.

It is an amenable number.

90013640748 is an abundant number, since it is smaller than the sum of its proper divisors (132444387156).

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

90013640748 is a wasteful number, since it uses less digits than its factorization.

90013640748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141662 (or 141660 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 90013640748 in words is "ninety billion, thirteen million, six hundred forty thousand, seven hundred forty-eight".