12744742793 has 2 divisors, whose sum is σ = 12744742794. Its totient is φ = 12744742792.

The previous prime is 12744742763. The next prime is 12744742817. The reversal of 12744742793 is 39724744721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12744603664 + 139129 = 112892^2 + 373^2 .

It is an emirp because it is prime and its reverse (39724744721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12744742793 - 2²⁴ = 12727965577 is a prime.

It is not a weakly prime, because it can be changed into another prime (12744742763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6372371396 + 6372371397.

It is an arithmetic number, because the mean of its divisors is an integer number (6372371397).

Almost surely, 2^12744742793 is an apocalyptic number.

It is an amenable number.

12744742793 is a deficient number, since it is larger than the sum of its proper divisors (1).

12744742793 is an equidigital number, since it uses as much as digits as its factorization.

12744742793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 50.

The spelling of 12744742793 in words is "twelve billion, seven hundred forty-four million, seven hundred forty-two thousand, seven hundred ninety-three".