12257324969 has 2 divisors, whose sum is σ = 12257324970. Its totient is φ = 12257324968.

The previous prime is 12257324957. The next prime is 12257324977. The reversal of 12257324969 is 96942375221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11834611369 + 422713600 = 108787^2 + 20560^2 .

It is a cyclic number.

It is not a de Polignac number, because 12257324969 - 2¹⁶ = 12257259433 is a prime.

It is a super-2 number, since 2×12257324969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12257324069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6128662484 + 6128662485.

It is an arithmetic number, because the mean of its divisors is an integer number (6128662485).

Almost surely, 2^12257324969 is an apocalyptic number.

It is an amenable number.

12257324969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12257324969 is an equidigital number, since it uses as much as digits as its factorization.

12257324969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The spelling of 12257324969 in words is "twelve billion, two hundred fifty-seven million, three hundred twenty-four thousand, nine hundred sixty-nine".