12394538524 has 6 divisors (see below), whose sum is σ = 21690442424. Its totient is φ = 6197269260.

The previous prime is 12394538521. The next prime is 12394538537. The reversal of 12394538524 is 42583549321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12394538521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1549317312 + ... + 1549317319.

Almost surely, 2^12394538524 is an apocalyptic number.

It is an amenable number.

12394538524 is a deficient number, since it is larger than the sum of its proper divisors (9295903900).

12394538524 is a wasteful number, since it uses less digits than its factorization.

12394538524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098634635 (or 3098634633 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The spelling of 12394538524 in words is "twelve billion, three hundred ninety-four million, five hundred thirty-eight thousand, five hundred twenty-four".