12745253491 has 2 divisors, whose sum is σ = 12745253492. Its totient is φ = 12745253490.

The previous prime is 12745253467. The next prime is 12745253503. The reversal of 12745253491 is 19435254721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12745253491 - 2¹¹ = 12745251443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12745253291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6372626745 + 6372626746.

It is an arithmetic number, because the mean of its divisors is an integer number (6372626746).

Almost surely, 2^12745253491 is an apocalyptic number.

12745253491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12745253491 is an equidigital number, since it uses as much as digits as its factorization.

12745253491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The spelling of 12745253491 in words is "twelve billion, seven hundred forty-five million, two hundred fifty-three thousand, four hundred ninety-one".