872187352680664 has 64 divisors (see below), whose sum is σ = 1687320461383200. Its totient is φ = 422388769612800.

The previous prime is 872187352680649. The next prime is 872187352680713. The reversal of 872187352680664 is 466086253781278.

It is a super-2 number, since 2×872187352680664² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3154691394 + ... + 3154967854.

Almost surely, 2^{872187352680664} is an apocalyptic number.

It is an amenable number.

872187352680664 is a deficient number, since it is larger than the sum of its proper divisors (815133108702536).

872187352680664 is a wasteful number, since it uses less digits than its factorization.

872187352680664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345844 (or 345840 counting only the distinct ones).

The product of its (nonzero) digits is 1300561920, while the sum is 73.

The spelling of 872187352680664 in words is "eight hundred seventy-two trillion, one hundred eighty-seven billion, three hundred fifty-two million, six hundred eighty thousand, six hundred sixty-four".