12972934425637 has 2 divisors, whose sum is σ = 12972934425638. Its totient is φ = 12972934425636.

The previous prime is 12972934425613. The next prime is 12972934425653. The reversal of 12972934425637 is 73652443927921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11887835119876 + 1085099305761 = 3447874^2 + 1041681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12972934425637 is a prime.

It is a super-2 number, since 2×12972934425637² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12972934420637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6486467212818 + 6486467212819.

It is an arithmetic number, because the mean of its divisors is an integer number (6486467212819).

Almost surely, 2^{12972934425637} is an apocalyptic number.

It is an amenable number.

12972934425637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12972934425637 is an equidigital number, since it uses as much as digits as its factorization.

12972934425637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 64.

The spelling of 12972934425637 in words is "twelve trillion, nine hundred seventy-two billion, nine hundred thirty-four million, four hundred twenty-five thousand, six hundred thirty-seven".