90732900732 has 48 divisors (see below), whose sum is σ = 222909657600. Its totient is φ = 28645176960.

The previous prime is 90732900691. The next prime is 90732900799. The reversal of 90732900732 is 23700923709.

It is a super-2 number, since 2×90732900732² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 881232 + ... + 978792.

It is an arithmetic number, because the mean of its divisors is an integer number (4643951200).

Almost surely, 2^90732900732 is an apocalyptic number.

It is an amenable number.

90732900732 is an abundant number, since it is smaller than the sum of its proper divisors (132176756868).

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

90732900732 is a wasteful number, since it uses less digits than its factorization.

90732900732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101666 (or 101664 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 42.

The spelling of 90732900732 in words is "ninety billion, seven hundred thirty-two million, nine hundred thousand, seven hundred thirty-two".