12457913491 has 2 divisors, whose sum is σ = 12457913492. Its totient is φ = 12457913490.

The previous prime is 12457913443. The next prime is 12457913527. The reversal of 12457913491 is 19431975421.

12457913491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12457913491 - 2¹¹ = 12457911443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12457913401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228956745 + 6228956746.

It is an arithmetic number, because the mean of its divisors is an integer number (6228956746).

Almost surely, 2^12457913491 is an apocalyptic number.

12457913491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12457913491 is an equidigital number, since it uses as much as digits as its factorization.

12457913491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The spelling of 12457913491 in words is "twelve billion, four hundred fifty-seven million, nine hundred thirteen thousand, four hundred ninety-one".