871668430456860 has 72 divisors (see below), whose sum is σ = 2644117779191616. Its totient is φ = 232439914922880.

The previous prime is 871668430456829. The next prime is 871668430456871. The reversal of 871668430456860 is 68654034866178.

871668430456860 is a `hidden beast` number, since 8 + 7 + 1 + 6 + 6 + 84 + 30 + 456 + 8 + 60 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43686699 + ... + 60430658.

It is an arithmetic number, because the mean of its divisors is an integer number (36723858044328).

Almost surely, 2^{871668430456860} is an apocalyptic number.

It is an amenable number.

871668430456860 is an abundant number, since it is smaller than the sum of its proper divisors (1772449348734756).

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

871668430456860 is a wasteful number, since it uses less digits than its factorization.

871668430456860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104163883 (or 104163878 counting only the distinct ones).

The product of its (nonzero) digits is 1114767360, while the sum is 72.

The spelling of 871668430456860 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".