12757040641 has 2 divisors, whose sum is σ = 12757040642. Its totient is φ = 12757040640.

The previous prime is 12757040627. The next prime is 12757040683. The reversal of 12757040641 is 14604075721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9815063041 + 2941977600 = 99071^2 + 54240^2 .

It is a cyclic number.

It is not a de Polignac number, because 12757040641 - 2¹⁷ = 12756909569 is a prime.

It is a super-2 number, since 2×12757040641² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12757040641.

It is not a weakly prime, because it can be changed into another prime (12757040041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6378520320 + 6378520321.

It is an arithmetic number, because the mean of its divisors is an integer number (6378520321).

Almost surely, 2^12757040641 is an apocalyptic number.

It is an amenable number.

12757040641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12757040641 is an equidigital number, since it uses as much as digits as its factorization.

12757040641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 12757040641 in words is "twelve billion, seven hundred fifty-seven million, forty thousand, six hundred forty-one".