12992397723 has 24 divisors (see below), whose sum is σ = 19192338672. Its totient is φ = 8467296768.

The previous prime is 12992397667. The next prime is 12992397731. The reversal of 12992397723 is 32779329921.

It is not a de Polignac number, because 12992397723 - 2⁶ = 12992397659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12992397723.

It is not an unprimeable number, because it can be changed into a prime (12992397773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13261 + ... + 161742.

It is an arithmetic number, because the mean of its divisors is an integer number (799680778).

Almost surely, 2^12992397723 is an apocalyptic number.

12992397723 is a deficient number, since it is larger than the sum of its proper divisors (6199940949).

12992397723 is a wasteful number, since it uses less digits than its factorization.

12992397723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175195 (or 175192 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The spelling of 12992397723 in words is "twelve billion, nine hundred ninety-two million, three hundred ninety-seven thousand, seven hundred twenty-three".