12344413649 has 2 divisors, whose sum is σ = 12344413650. Its totient is φ = 12344413648.

The previous prime is 12344413607. The next prime is 12344413663. The reversal of 12344413649 is 94631444321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9733203649 + 2611210000 = 98657^2 + 51100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12344413649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12344413699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172206824 + 6172206825.

It is an arithmetic number, because the mean of its divisors is an integer number (6172206825).

Almost surely, 2^12344413649 is an apocalyptic number.

It is an amenable number.

12344413649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344413649 is an equidigital number, since it uses as much as digits as its factorization.

12344413649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The spelling of 12344413649 in words is "twelve billion, three hundred forty-four million, four hundred thirteen thousand, six hundred forty-nine".