12815334839 has 2 divisors, whose sum is σ = 12815334840. Its totient is φ = 12815334838.

The previous prime is 12815334809. The next prime is 12815334901. The reversal of 12815334839 is 93843351821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12815334839 - 2²⁸ = 12546899383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12815334793 and 12815334802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12815334809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6407667419 + 6407667420.

It is an arithmetic number, because the mean of its divisors is an integer number (6407667420).

Almost surely, 2^12815334839 is an apocalyptic number.

12815334839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12815334839 is an equidigital number, since it uses as much as digits as its factorization.

12815334839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The spelling of 12815334839 in words is "twelve billion, eight hundred fifteen million, three hundred thirty-four thousand, eight hundred thirty-nine".