87616538488865 has 32 divisors (see below), whose sum is σ = 105636228765696. Its totient is φ = 69763179245760.

The previous prime is 87616538488859. The next prime is 87616538488883. The reversal of 87616538488865 is 56888483561678.

It is not a de Polignac number, because 87616538488865 - 2¹⁶ = 87616538423329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2520378974 + ... + 2520413736.

It is an arithmetic number, because the mean of its divisors is an integer number (3301132148928).

Almost surely, 2^{87616538488865} is an apocalyptic number.

It is an amenable number.

87616538488865 is a deficient number, since it is larger than the sum of its proper divisors (18019690276831).

87616538488865 is a wasteful number, since it uses less digits than its factorization.

87616538488865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37829.

The product of its digits is 14863564800, while the sum is 83.

The spelling of 87616538488865 in words is "eighty-seven trillion, six hundred sixteen billion, five hundred thirty-eight million, four hundred eighty-eight thousand, eight hundred sixty-five".