871256255888 has 20 divisors (see below), whose sum is σ = 1688242705968. Its totient is φ = 435580718880.

The previous prime is 871256255887. The next prime is 871256255911. The reversal of 871256255888 is 888552652178.

It is a super-2 number, since 2×871256255888² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (871256255887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2811218 + ... + 3105713.

Almost surely, 2^871256255888 is an apocalyptic number.

It is an amenable number.

871256255888 is a deficient number, since it is larger than the sum of its proper divisors (816986450080).

871256255888 is a wasteful number, since it uses less digits than its factorization.

871256255888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926142 (or 5926136 counting only the distinct ones).

The product of its digits is 86016000, while the sum is 65.

The spelling of 871256255888 in words is "eight hundred seventy-one billion, two hundred fifty-six million, two hundred fifty-five thousand, eight hundred eighty-eight".