126756648713 has 2 divisors, whose sum is σ = 126756648714. Its totient is φ = 126756648712.

The previous prime is 126756648703. The next prime is 126756648749. The reversal of 126756648713 is 317846657621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66913790329 + 59842858384 = 258677^2 + 244628^2 .

It is a cyclic number.

It is not a de Polignac number, because 126756648713 - 2⁸ = 126756648457 is a prime.

It is not a weakly prime, because it can be changed into another prime (126756648703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63378324356 + 63378324357.

It is an arithmetic number, because the mean of its divisors is an integer number (63378324357).

Almost surely, 2^126756648713 is an apocalyptic number.

It is an amenable number.

126756648713 is a deficient number, since it is larger than the sum of its proper divisors (1).

126756648713 is an equidigital number, since it uses as much as digits as its factorization.

126756648713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 56.

The spelling of 126756648713 in words is "one hundred twenty-six billion, seven hundred fifty-six million, six hundred forty-eight thousand, seven hundred thirteen".