87465522556478 has 24 divisors (see below), whose sum is σ = 144219671630496. Its totient is φ = 39754302193760.

The previous prime is 87465522556459. The next prime is 87465522556501.

87465522556478 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9012575 + ... + 16004922.

It is an arithmetic number, because the mean of its divisors is an integer number (6009152984604).

Almost surely, 2^{87465522556478} is an apocalyptic number.

87465522556478 is a deficient number, since it is larger than the sum of its proper divisors (56754149074018).

87465522556478 is a wasteful number, since it uses less digits than its factorization.

87465522556478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25031968 (or 25031957 counting only the distinct ones).

The product of its digits is 4515840000, while the sum is 74.

The spelling of 87465522556478 in words is "eighty-seven trillion, four hundred sixty-five billion, five hundred twenty-two million, five hundred fifty-six thousand, four hundred seventy-eight".