89747922615 has 32 divisors (see below), whose sum is σ = 154691120640. Its totient is φ = 44169722496.

The previous prime is 89747922577. The next prime is 89747922617. The reversal of 89747922615 is 51622974798.

89747922615 is a nontrivial binomial coefficient, being equal to C(423670, 2).

It is not a de Polignac number, because 89747922615 - 2²⁸ = 89479487159 is a prime.

It is a super-2 number, since 2×89747922615² (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 (89747922617) 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, 564894 + ... + 706116.

It is an arithmetic number, because the mean of its divisors is an integer number (4834097520).

Almost surely, 2^89747922615 is an apocalyptic number.

89747922615 is the 423669-th triangular number and also the 211835-th hexagonal number.

89747922615 is a deficient number, since it is larger than the sum of its proper divisors (64943198025).

89747922615 is a wasteful number, since it uses less digits than its factorization.

89747922615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144503.

The product of its digits is 15240960, while the sum is 60.

The spelling of 89747922615 in words is "eighty-nine billion, seven hundred forty-seven million, nine hundred twenty-two thousand, six hundred fifteen".