871630853864 has 16 divisors (see below), whose sum is σ = 1634509714020. Its totient is φ = 435761596800.

The previous prime is 871630853861. The next prime is 871630853887. The reversal of 871630853864 is 468358036178.

It can be written as a sum of positive squares in 2 ways, for example, as 871500665764 + 130188100 = 933542^2 + 11410^2 .

It is not an unprimeable number, because it can be changed into a prime (871630853861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6659909 + ... + 6789524.

Almost surely, 2^871630853864 is an apocalyptic number.

It is an amenable number.

871630853864 is a deficient number, since it is larger than the sum of its proper divisors (762878860156).

871630853864 is a wasteful number, since it uses less digits than its factorization.

871630853864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13457540 (or 13457536 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 871630853864 in words is "eight hundred seventy-one billion, six hundred thirty million, eight hundred fifty-three thousand, eight hundred sixty-four".