12942471791 has 2 divisors, whose sum is σ = 12942471792. Its totient is φ = 12942471790.

The previous prime is 12942471781. The next prime is 12942471833. The reversal of 12942471791 is 19717424921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12942471791 - 2¹⁸ = 12942209647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12942471701) 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, 6471235895 + 6471235896.

It is an arithmetic number, because the mean of its divisors is an integer number (6471235896).

Almost surely, 2^12942471791 is an apocalyptic number.

12942471791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12942471791 is an equidigital number, since it uses as much as digits as its factorization.

12942471791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 47.

The spelling of 12942471791 in words is "twelve billion, nine hundred forty-two million, four hundred seventy-one thousand, seven hundred ninety-one".