389311930850 has 24 divisors (see below), whose sum is σ = 724273948560. Its totient is φ = 155691706320.

The previous prime is 389311930807. The next prime is 389311930867. The reversal of 389311930850 is 58039113983.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588140 + ... + 1060439.

It is an arithmetic number, because the mean of its divisors is an integer number (30178081190).

Almost surely, 2^389311930850 is an apocalyptic number.

389311930850 is a deficient number, since it is larger than the sum of its proper divisors (334962017710).

389311930850 is a wasteful number, since it uses less digits than its factorization.

389311930850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653314 (or 1653309 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 389311930850 in words is "three hundred eighty-nine billion, three hundred eleven million, nine hundred thirty thousand, eight hundred fifty".