12993647291 has 2 divisors, whose sum is σ = 12993647292. Its totient is φ = 12993647290.

The previous prime is 12993647243. The next prime is 12993647333. The reversal of 12993647291 is 19274639921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12993647291 is a prime.

It is not a weakly prime, because it can be changed into another prime (12993644291) 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, 6496823645 + 6496823646.

It is an arithmetic number, because the mean of its divisors is an integer number (6496823646).

Almost surely, 2^12993647291 is an apocalyptic number.

12993647291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12993647291 is an equidigital number, since it uses as much as digits as its factorization.

12993647291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The spelling of 12993647291 in words is "twelve billion, nine hundred ninety-three million, six hundred forty-seven thousand, two hundred ninety-one".