12972443767 has 2 divisors, whose sum is σ = 12972443768. Its totient is φ = 12972443766.

The previous prime is 12972443753. The next prime is 12972443807. The reversal of 12972443767 is 76734427921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12972443767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12972443167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6486221883 + 6486221884.

It is an arithmetic number, because the mean of its divisors is an integer number (6486221884).

Almost surely, 2^12972443767 is an apocalyptic number.

12972443767 is a deficient number, since it is larger than the sum of its proper divisors (1).

12972443767 is an equidigital number, since it uses as much as digits as its factorization.

12972443767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 52.

The spelling of 12972443767 in words is "twelve billion, nine hundred seventy-two million, four hundred forty-three thousand, seven hundred sixty-seven".