12513132638761 has 2 divisors, whose sum is σ = 12513132638762. Its totient is φ = 12513132638760.

The previous prime is 12513132638737. The next prime is 12513132638813. The reversal of 12513132638761 is 16783623131521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8457883163536 + 4055249475225 = 2908244^2 + 2013765^2 .

It is a cyclic number.

It is not a de Polignac number, because 12513132638761 - 2¹³ = 12513132630569 is a prime.

It is not a weakly prime, because it can be changed into another prime (12513132608761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256566319380 + 6256566319381.

It is an arithmetic number, because the mean of its divisors is an integer number (6256566319381).

Almost surely, 2^{12513132638761} is an apocalyptic number.

It is an amenable number.

12513132638761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513132638761 is an equidigital number, since it uses as much as digits as its factorization.

12513132638761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 12513132638761 in words is "twelve trillion, five hundred thirteen billion, one hundred thirty-two million, six hundred thirty-eight thousand, seven hundred sixty-one".