871367702172 has 48 divisors (see below), whose sum is σ = 2224070671872. Its totient is φ = 263331319680.

The previous prime is 871367702159. The next prime is 871367702189. The reversal of 871367702172 is 271207763178.

It is a super-2 number, since 2×871367702172² (a number of 25 digits) contains 22 as substring.

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, 8945113 + ... + 9042000.

It is an arithmetic number, because the mean of its divisors is an integer number (46334805664).

Almost surely, 2^871367702172 is an apocalyptic number.

It is an amenable number.

871367702172 is an abundant number, since it is smaller than the sum of its proper divisors (1352702969700).

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

871367702172 is a wasteful number, since it uses less digits than its factorization.

871367702172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17987498 (or 17987496 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 51.

The spelling of 871367702172 in words is "eight hundred seventy-one billion, three hundred sixty-seven million, seven hundred two thousand, one hundred seventy-two".