89636915313 has 36 divisors (see below), whose sum is σ = 142433284084. Its totient is φ = 54280670400.

The previous prime is 89636915297. The next prime is 89636915323. The reversal of 89636915313 is 31351963698.

It can be written as a sum of positive squares in 2 ways, for example, as 73779054129 + 15857861184 = 271623^2 + 125928^2 .

It is not a de Polignac number, because 89636915313 - 2⁴ = 89636915297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89636915313.

It is not an unprimeable number, because it can be changed into a prime (89636915323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1313823 + ... + 1380363.

Almost surely, 2^89636915313 is an apocalyptic number.

It is an amenable number.

89636915313 is a deficient number, since it is larger than the sum of its proper divisors (52796368771).

89636915313 is a wasteful number, since it uses less digits than its factorization.

89636915313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67806 (or 67792 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The spelling of 89636915313 in words is "eighty-nine billion, six hundred thirty-six million, nine hundred fifteen thousand, three hundred thirteen".