89297865620915 has 48 divisors (see below), whose sum is σ = 124908716908800. Its totient is φ = 61107072852672.

The previous prime is 89297865620891. The next prime is 89297865620917. The reversal of 89297865620915 is 51902656879298.

It is a de Polignac number, because none of the positive numbers 2^k-89297865620915 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89297865620917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313558856 + ... + 313843514.

It is an arithmetic number, because the mean of its divisors is an integer number (2602264935600).

Almost surely, 2^{89297865620915} is an apocalyptic number.

89297865620915 is a deficient number, since it is larger than the sum of its proper divisors (35610851287885).

89297865620915 is a wasteful number, since it uses less digits than its factorization.

89297865620915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287304 (or 287297 counting only the distinct ones).

The product of its (nonzero) digits is 1175731200, while the sum is 77.

The spelling of 89297865620915 in words is "eighty-nine trillion, two hundred ninety-seven billion, eight hundred sixty-five million, six hundred twenty thousand, nine hundred fifteen".