11957625439 has 2 divisors, whose sum is σ = 11957625440. Its totient is φ = 11957625438.

The previous prime is 11957625397. The next prime is 11957625469. The reversal of 11957625439 is 93452675911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11957625439 - 2⁹ = 11957624927 is a prime.

It is a super-2 number, since 2×11957625439² (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 (11957625469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5978812719 + 5978812720.

It is an arithmetic number, because the mean of its divisors is an integer number (5978812720).

Almost surely, 2^11957625439 is an apocalyptic number.

11957625439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11957625439 is an equidigital number, since it uses as much as digits as its factorization.

11957625439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 52.

The spelling of 11957625439 in words is "eleven billion, nine hundred fifty-seven million, six hundred twenty-five thousand, four hundred thirty-nine".