871671670041864 has 32 divisors (see below), whose sum is σ = 2179862946609120. Its totient is φ = 290466053813376.

The previous prime is 871671670041647. The next prime is 871671670041871. The reversal of 871671670041864 is 468140076176178.

It is a junction number, because it is equal to n+sod(n) for n = 871671670041795 and 871671670041804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5698017789 + ... + 5698170764.

It is an arithmetic number, because the mean of its divisors is an integer number (68120717081535).

Almost surely, 2^{871671670041864} is an apocalyptic number.

It is an amenable number.

871671670041864 is an abundant number, since it is smaller than the sum of its proper divisors (1308191276567256).

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

871671670041864 is a wasteful number, since it uses less digits than its factorization.

871671670041864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11396191749 (or 11396191745 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 66.

The spelling of 871671670041864 in words is "eight hundred seventy-one trillion, six hundred seventy-one billion, six hundred seventy million, forty-one thousand, eight hundred sixty-four".