878845645684 has 12 divisors (see below), whose sum is σ = 1537990209504. Its totient is φ = 439419871544.

The previous prime is 878845645661. The next prime is 878845645693. The reversal of 878845645684 is 486546548878.

878845645684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18279 + ... + 1325905.

It is an arithmetic number, because the mean of its divisors is an integer number (128165850792).

Almost surely, 2^878845645684 is an apocalyptic number.

It is an amenable number.

878845645684 is a deficient number, since it is larger than the sum of its proper divisors (659144563820).

878845645684 is a wasteful number, since it uses less digits than its factorization.

878845645684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475654 (or 1475652 counting only the distinct ones).

The product of its digits is 1651507200, while the sum is 73.

The spelling of 878845645684 in words is "eight hundred seventy-eight billion, eight hundred forty-five million, six hundred forty-five thousand, six hundred eighty-four".