12490430917 has 2 divisors, whose sum is σ = 12490430918. Its totient is φ = 12490430916.

The previous prime is 12490430879. The next prime is 12490430951. The reversal of 12490430917 is 71903409421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7421133316 + 5069297601 = 86146^2 + 71199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12490430917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12490430917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12490430717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6245215458 + 6245215459.

It is an arithmetic number, because the mean of its divisors is an integer number (6245215459).

Almost surely, 2^12490430917 is an apocalyptic number.

It is an amenable number.

12490430917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12490430917 is an equidigital number, since it uses as much as digits as its factorization.

12490430917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 12490430917 in words is "twelve billion, four hundred ninety million, four hundred thirty thousand, nine hundred seventeen".