12972398168 has 16 divisors (see below), whose sum is σ = 24371610480. Its totient is φ = 6473302048.

The previous prime is 12972398119. The next prime is 12972398203. The reversal of 12972398168 is 86189327921.

It is a super-2 number, since 2×12972398168² (a number of 21 digits) contains 22 as substring.

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, 1607855 + ... + 1615902.

It is an arithmetic number, because the mean of its divisors is an integer number (1523225655).

Almost surely, 2^12972398168 is an apocalyptic number.

It is an amenable number.

12972398168 is a deficient number, since it is larger than the sum of its proper divisors (11399212312).

12972398168 is a wasteful number, since it uses less digits than its factorization.

12972398168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224266 (or 3224262 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The spelling of 12972398168 in words is "twelve billion, nine hundred seventy-two million, three hundred ninety-eight thousand, one hundred sixty-eight".