90653752540 has 96 divisors (see below), whose sum is σ = 210697127424. Its totient is φ = 32545981440.

The previous prime is 90653752537. The next prime is 90653752549. The reversal of 90653752540 is 4525735609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90653752549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24923602 + ... + 24927238.

It is an arithmetic number, because the mean of its divisors is an integer number (2194761744).

Almost surely, 2^90653752540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90653752540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105348563712).

90653752540 is an abundant number, since it is smaller than the sum of its proper divisors (120043374884).

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

90653752540 is a wasteful number, since it uses less digits than its factorization.

90653752540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 90653752540 in words is "ninety billion, six hundred fifty-three million, seven hundred fifty-two thousand, five hundred forty".