871374421872252 has 18 divisors (see below), whose sum is σ = 2202640899732728. Its totient is φ = 290458140624072.

The previous prime is 871374421872239. The next prime is 871374421872299. The reversal of 871374421872252 is 252278124473178.

871374421872252 is a `hidden beast` number, since 8 + 7 + 1 + 3 + 7 + 442 + 187 + 2 + 2 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 871374421872252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12102422525968 + ... + 12102422526039.

Almost surely, 2^{871374421872252} is an apocalyptic number.

It is an amenable number.

871374421872252 is an abundant number, since it is smaller than the sum of its proper divisors (1331266477860476).

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

871374421872252 is a wasteful number, since it uses less digits than its factorization.

871374421872252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24204845052017 (or 24204845052012 counting only the distinct ones).

The product of its digits is 84295680, while the sum is 63.

The spelling of 871374421872252 in words is "eight hundred seventy-one trillion, three hundred seventy-four billion, four hundred twenty-one million, eight hundred seventy-two thousand, two hundred fifty-two".