872865792865 has 8 divisors (see below), whose sum is σ = 1142660674368. Its totient is φ = 634811485680.

The previous prime is 872865792793. The next prime is 872865792959. The reversal of 872865792865 is 568297568278.

872865792865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 872865792865 - 2³⁷ = 735426839393 is a prime.

It is a Duffinian number.

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, 7935143517 + ... + 7935143626.

It is an arithmetic number, because the mean of its divisors is an integer number (142832584296).

Almost surely, 2^872865792865 is an apocalyptic number.

It is an amenable number.

872865792865 is a deficient number, since it is larger than the sum of its proper divisors (269794881503).

872865792865 is a wasteful number, since it uses less digits than its factorization.

872865792865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15870287159.

The product of its digits is 812851200, while the sum is 73.

The spelling of 872865792865 in words is "eight hundred seventy-two billion, eight hundred sixty-five million, seven hundred ninety-two thousand, eight hundred sixty-five".