87215574860 has 24 divisors (see below), whose sum is σ = 183196982976. Its totient is φ = 34877796480.

The previous prime is 87215574841. The next prime is 87215574947. The reversal of 87215574860 is 6847551278.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441956 + ... + 608075.

It is an arithmetic number, because the mean of its divisors is an integer number (7633207624).

Almost surely, 2^87215574860 is an apocalyptic number.

It is an amenable number.

87215574860 is an abundant number, since it is smaller than the sum of its proper divisors (95981408116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87215574860 is a wasteful number, since it uses less digits than its factorization.

87215574860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054193 (or 1054191 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 87215574860 in words is "eighty-seven billion, two hundred fifteen million, five hundred seventy-four thousand, eight hundred sixty".