12393996427 has 2 divisors, whose sum is σ = 12393996428. Its totient is φ = 12393996426.

The previous prime is 12393996403. The next prime is 12393996437. The reversal of 12393996427 is 72469939321.

12393996427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12393996427 - 2³¹ = 10246512779 is a prime.

It is a super-2 number, since 2×12393996427² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12393996437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196998213 + 6196998214.

It is an arithmetic number, because the mean of its divisors is an integer number (6196998214).

Almost surely, 2^12393996427 is an apocalyptic number.

12393996427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12393996427 is an equidigital number, since it uses as much as digits as its factorization.

12393996427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4408992, while the sum is 55.

The spelling of 12393996427 in words is "twelve billion, three hundred ninety-three million, nine hundred ninety-six thousand, four hundred twenty-seven".