12396425257 has 2 divisors, whose sum is σ = 12396425258. Its totient is φ = 12396425256.

The previous prime is 12396425179. The next prime is 12396425333. The reversal of 12396425257 is 75252469321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9925937641 + 2470487616 = 99629^2 + 49704^2 .

It is a cyclic number.

It is not a de Polignac number, because 12396425257 - 2²³ = 12388036649 is a prime.

It is not a weakly prime, because it can be changed into another prime (12396425557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6198212628 + 6198212629.

It is an arithmetic number, because the mean of its divisors is an integer number (6198212629).

Almost surely, 2^12396425257 is an apocalyptic number.

It is an amenable number.

12396425257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12396425257 is an equidigital number, since it uses as much as digits as its factorization.

12396425257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 46.

The spelling of 12396425257 in words is "twelve billion, three hundred ninety-six million, four hundred twenty-five thousand, two hundred fifty-seven".