89718918624 has 96 divisors (see below), whose sum is σ = 263413543680. Its totient is φ = 29708208000.

The previous prime is 89718918613. The next prime is 89718918637. The reversal of 89718918624 is 42681981798.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213382 + ... + 474309.

It is an arithmetic number, because the mean of its divisors is an integer number (2743891080).

Almost surely, 2^89718918624 is an apocalyptic number.

It is an amenable number.

89718918624 is an abundant number, since it is smaller than the sum of its proper divisors (173694625056).

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

89718918624 is a wasteful number, since it uses less digits than its factorization.

89718918624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687861 (or 687847 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 63.

The spelling of 89718918624 in words is "eighty-nine billion, seven hundred eighteen million, nine hundred eighteen thousand, six hundred twenty-four".