90123497528 has 32 divisors (see below), whose sum is σ = 180080271360. Its totient is φ = 42185462880.

The previous prime is 90123497521. The next prime is 90123497533. The reversal of 90123497528 is 82579432109.

It is a super-2 number, since 2×90123497528² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90123497521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5202008 + ... + 5219303.

It is an arithmetic number, because the mean of its divisors is an integer number (5627508480).

Almost surely, 2^90123497528 is an apocalyptic number.

It is an amenable number.

90123497528 is a deficient number, since it is larger than the sum of its proper divisors (89956773832).

90123497528 is a wasteful number, since it uses less digits than its factorization.

90123497528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10421387 (or 10421383 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 90123497528 in words is "ninety billion, one hundred twenty-three million, four hundred ninety-seven thousand, five hundred twenty-eight".