89190057520 has 40 divisors (see below), whose sum is σ = 208042403184. Its totient is φ = 35559804672.

The previous prime is 89190057487. The next prime is 89190057533. The reversal of 89190057520 is 2575009198.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791199 + ... + 1840318.

Almost surely, 2^89190057520 is an apocalyptic number.

89190057520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89190057520 is an abundant number, since it is smaller than the sum of its proper divisors (118852345664).

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

89190057520 is a wasteful number, since it uses less digits than its factorization.

89190057520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631837 (or 3631831 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 89190057520 in words is "eighty-nine billion, one hundred ninety million, fifty-seven thousand, five hundred twenty".