512138860384 has 24 divisors (see below), whose sum is σ = 1008562422168. Its totient is φ = 255996023040.

The previous prime is 512138860367. The next prime is 512138860393. The reversal of 512138860384 is 483068831215.

It is a happy number.

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, 2180517 + ... + 2403940.

It is an arithmetic number, because the mean of its divisors is an integer number (42023434257).

Almost surely, 2^512138860384 is an apocalyptic number.

It is an amenable number.

512138860384 is a deficient number, since it is larger than the sum of its proper divisors (496423561784).

512138860384 is a wasteful number, since it uses less digits than its factorization.

512138860384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587958 (or 4587950 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 512138860384 in words is "five hundred twelve billion, one hundred thirty-eight million, eight hundred sixty thousand, three hundred eighty-four".