89517478755 has 32 divisors (see below), whose sum is σ = 148144896000. Its totient is φ = 46109859840.

The previous prime is 89517478747. The next prime is 89517478849. The reversal of 89517478755 is 55787471598.

It is not a de Polignac number, because 89517478755 - 2³ = 89517478747 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 39139 + ... + 424931.

It is an arithmetic number, because the mean of its divisors is an integer number (4629528000).

Almost surely, 2^89517478755 is an apocalyptic number.

89517478755 is a deficient number, since it is larger than the sum of its proper divisors (58627417245).

89517478755 is a wasteful number, since it uses less digits than its factorization.

89517478755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386331.

The product of its digits is 98784000, while the sum is 66.

The spelling of 89517478755 in words is "eighty-nine billion, five hundred seventeen million, four hundred seventy-eight thousand, seven hundred fifty-five".