90045930732 has 24 divisors (see below), whose sum is σ = 212766758400. Its totient is φ = 29635369296.

The previous prime is 90045930731. The next prime is 90045930761. The reversal of 90045930732 is 23703954009.

It is not an unprimeable number, because it can be changed into a prime (90045930731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47491632 + ... + 47493527.

It is an arithmetic number, because the mean of its divisors is an integer number (8865281600).

Almost surely, 2^90045930732 is an apocalyptic number.

It is an amenable number.

90045930732 is an abundant number, since it is smaller than the sum of its proper divisors (122720827668).

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

90045930732 is a wasteful number, since it uses less digits than its factorization.

90045930732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94985245 (or 94985243 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 90045930732 in words is "ninety billion, forty-five million, nine hundred thirty thousand, seven hundred thirty-two".