871668430456862 has 32 divisors (see below), whose sum is σ = 1418759891366400. Its totient is φ = 400049467106688.

The previous prime is 871668430456829. The next prime is 871668430456871. The reversal of 871668430456862 is 268654034866178.

It is a self number, because there is not a number n which added to its sum of digits gives 871668430456862.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 451401062 + ... + 453327977.

It is an arithmetic number, because the mean of its divisors is an integer number (44336246605200).

Almost surely, 2^{871668430456862} is an apocalyptic number.

871668430456862 is a deficient number, since it is larger than the sum of its proper divisors (547091460909538).

871668430456862 is a wasteful number, since it uses less digits than its factorization.

871668430456862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904729760.

The product of its (nonzero) digits is 2229534720, while the sum is 74.

The spelling of 871668430456862 in words is "eight hundred seventy-one trillion, six hundred sixty-eight billion, four hundred thirty million, four hundred fifty-six thousand, eight hundred sixty-two".