871037474244256 has 144 divisors (see below), whose sum is σ = 1885876704369000. Its totient is φ = 395725927956480.

The previous prime is 871037474244241. The next prime is 871037474244277. The reversal of 871037474244256 is 652442474730178.

It can be written as a sum of positive squares in 4 ways, for example, as 591427574272656 + 279609899971600 = 24319284^2 + 16721540^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104079034440 + ... + 104079042808.

Almost surely, 2^{871037474244256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871037474244256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942938352184500).

871037474244256 is an abundant number, since it is smaller than the sum of its proper divisors (1014839230124744).

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

871037474244256 is a wasteful number, since it uses less digits than its factorization.

871037474244256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18783 (or 18764 counting only the distinct ones).

The product of its (nonzero) digits is 252887040, while the sum is 64.

The spelling of 871037474244256 in words is "eight hundred seventy-one trillion, thirty-seven billion, four hundred seventy-four million, two hundred forty-four thousand, two hundred fifty-six".