12394635947 has 2 divisors, whose sum is σ = 12394635948. Its totient is φ = 12394635946.

The previous prime is 12394635943. The next prime is 12394636027. The reversal of 12394635947 is 74953649321.

12394635947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12394635947 - 2² = 12394635943 is a prime.

It is not a weakly prime, because it can be changed into another prime (12394635943) 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, 6197317973 + 6197317974.

It is an arithmetic number, because the mean of its divisors is an integer number (6197317974).

Almost surely, 2^12394635947 is an apocalyptic number.

12394635947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12394635947 is an equidigital number, since it uses as much as digits as its factorization.

12394635947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 53.

The spelling of 12394635947 in words is "twelve billion, three hundred ninety-four million, six hundred thirty-five thousand, nine hundred forty-seven".