1312632646757 has 2 divisors, whose sum is σ = 1312632646758. Its totient is φ = 1312632646756.

The previous prime is 1312632646691. The next prime is 1312632646783. The reversal of 1312632646757 is 7576462362131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1312218361441 + 414285316 = 1145521^2 + 20354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312632646757 - 2²⁰ = 1312631598181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312632646699 and 1312632646708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312632646657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656316323378 + 656316323379.

It is an arithmetic number, because the mean of its divisors is an integer number (656316323379).

Almost surely, 2^{1312632646757} is an apocalyptic number.

It is an amenable number.

1312632646757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312632646757 is an equidigital number, since it uses as much as digits as its factorization.

1312632646757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 53.

The spelling of 1312632646757 in words is "one trillion, three hundred twelve billion, six hundred thirty-two million, six hundred forty-six thousand, seven hundred fifty-seven".