12164435939 has 2 divisors, whose sum is σ = 12164435940. Its totient is φ = 12164435938.

The previous prime is 12164435909. The next prime is 12164435951. The reversal of 12164435939 is 93953446121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12164435939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12164435893 and 12164435902.

It is not a weakly prime, because it can be changed into another prime (12164435909) 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, 6082217969 + 6082217970.

It is an arithmetic number, because the mean of its divisors is an integer number (6082217970).

Almost surely, 2^12164435939 is an apocalyptic number.

12164435939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12164435939 is an equidigital number, since it uses as much as digits as its factorization.

12164435939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The spelling of 12164435939 in words is "twelve billion, one hundred sixty-four million, four hundred thirty-five thousand, nine hundred thirty-nine".