12615057839 has 2 divisors, whose sum is σ = 12615057840. Its totient is φ = 12615057838.

The previous prime is 12615057821. The next prime is 12615057941. The reversal of 12615057839 is 93875051621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12615057839 - 2²⁸ = 12346622383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12615057793 and 12615057802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12615053839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307528919 + 6307528920.

It is an arithmetic number, because the mean of its divisors is an integer number (6307528920).

Almost surely, 2^12615057839 is an apocalyptic number.

12615057839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615057839 is an equidigital number, since it uses as much as digits as its factorization.

12615057839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 12615057839 in words is "twelve billion, six hundred fifteen million, fifty-seven thousand, eight hundred thirty-nine".