71871765464004 has 24 divisors (see below), whose sum is σ = 182946312090528. Its totient is φ = 21779322867840.

The previous prime is 71871765463943. The next prime is 71871765464011. The reversal of 71871765464004 is 40046456717817.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272241535717 + ... + 272241535980.

It is an arithmetic number, because the mean of its divisors is an integer number (7622763003772).

Almost surely, 2^{71871765464004} is an apocalyptic number.

It is an amenable number.

71871765464004 is an abundant number, since it is smaller than the sum of its proper divisors (111074546626524).

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

71871765464004 is a wasteful number, since it uses less digits than its factorization.

71871765464004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544483071715 (or 544483071713 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 60.

The spelling of 71871765464004 in words is "seventy-one trillion, eight hundred seventy-one billion, seven hundred sixty-five million, four hundred sixty-four thousand, four".