12569378431 has 2 divisors, whose sum is σ = 12569378432. Its totient is φ = 12569378430.

The previous prime is 12569378357. The next prime is 12569378441. The reversal of 12569378431 is 13487396521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12569378431 - 2⁷ = 12569378303 is a prime.

It is a super-2 number, since 2×12569378431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12569378441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284689215 + 6284689216.

It is an arithmetic number, because the mean of its divisors is an integer number (6284689216).

Almost surely, 2^12569378431 is an apocalyptic number.

12569378431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12569378431 is an equidigital number, since it uses as much as digits as its factorization.

12569378431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 12569378431 in words is "twelve billion, five hundred sixty-nine million, three hundred seventy-eight thousand, four hundred thirty-one".