12399524716 has 24 divisors (see below), whose sum is σ = 22859868080. Its totient is φ = 5868666432.

The previous prime is 12399524707. The next prime is 12399524723. The reversal of 12399524716 is 61742599321.

It is a self number, because there is not a number n which added to its sum of digits gives 12399524716.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28066 + ... + 159958.

Almost surely, 2^12399524716 is an apocalyptic number.

It is an amenable number.

12399524716 is a deficient number, since it is larger than the sum of its proper divisors (10460343364).

12399524716 is a wasteful number, since it uses less digits than its factorization.

12399524716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133153 (or 133151 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The spelling of 12399524716 in words is "twelve billion, three hundred ninety-nine million, five hundred twenty-four thousand, seven hundred sixteen".