12398924956 has 24 divisors (see below), whose sum is σ = 24221159424. Its totient is φ = 5504807280.

The previous prime is 12398924947. The next prime is 12398924957. The reversal of 12398924956 is 65942989321.

It is a self number, because there is not a number n which added to its sum of digits gives 12398924956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12398924957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3274780 + ... + 3278563.

It is an arithmetic number, because the mean of its divisors is an integer number (1009214976).

Almost surely, 2^12398924956 is an apocalyptic number.

It is an amenable number.

12398924956 is a deficient number, since it is larger than the sum of its proper divisors (11822234468).

12398924956 is a wasteful number, since it uses less digits than its factorization.

12398924956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553401 (or 6553399 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 58.

The spelling of 12398924956 in words is "twelve billion, three hundred ninety-eight million, nine hundred twenty-four thousand, nine hundred fifty-six".