866882868846 has 32 divisors (see below), whose sum is σ = 1776165856416. Its totient is φ = 281895168000.

The previous prime is 866882868823. The next prime is 866882868857. The reversal of 866882868846 is 648868288668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4073566 + ... + 4281086.

It is an arithmetic number, because the mean of its divisors is an integer number (55505183013).

Almost surely, 2^866882868846 is an apocalyptic number.

866882868846 is an abundant number, since it is smaller than the sum of its proper divisors (909282987570).

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

866882868846 is a wasteful number, since it uses less digits than its factorization.

866882868846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224548.

The product of its digits is 2717908992, while the sum is 78.

The spelling of 866882868846 in words is "eight hundred sixty-six billion, eight hundred eighty-two million, eight hundred sixty-eight thousand, eight hundred forty-six".