871444255580 has 96 divisors (see below), whose sum is σ = 1901810534400. Its totient is φ = 335173540352.

The previous prime is 871444255567. The next prime is 871444255621. The reversal of 871444255580 is 85552444178.

It is a super-3 number, since 3×871444255580³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115741256 + ... + 115748784.

It is an arithmetic number, because the mean of its divisors is an integer number (19810526400).

Almost surely, 2^871444255580 is an apocalyptic number.

It is an amenable number.

871444255580 is an abundant number, since it is smaller than the sum of its proper divisors (1030366278820).

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

871444255580 is a wasteful number, since it uses less digits than its factorization.

871444255580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9731 (or 9729 counting only the distinct ones).

The product of its (nonzero) digits is 7168000, while the sum is 53.

The spelling of 871444255580 in words is "eight hundred seventy-one billion, four hundred forty-four million, two hundred fifty-five thousand, five hundred eighty".