12951997967 has 2 divisors, whose sum is σ = 12951997968. Its totient is φ = 12951997966.

The previous prime is 12951997937. The next prime is 12951997987. The reversal of 12951997967 is 76979915921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12951997967 - 2²⁶ = 12884889103 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12951997937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6475998983 + 6475998984.

It is an arithmetic number, because the mean of its divisors is an integer number (6475998984).

Almost surely, 2^12951997967 is an apocalyptic number.

12951997967 is a deficient number, since it is larger than the sum of its proper divisors (1).

12951997967 is an equidigital number, since it uses as much as digits as its factorization.

12951997967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19289340, while the sum is 65.

The spelling of 12951997967 in words is "twelve billion, nine hundred fifty-one million, nine hundred ninety-seven thousand, nine hundred sixty-seven".