12838324349 has 2 divisors, whose sum is σ = 12838324350. Its totient is φ = 12838324348.

The previous prime is 12838324321. The next prime is 12838324403. The reversal of 12838324349 is 94342383821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9778243225 + 3060081124 = 98885^2 + 55318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12838324349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12838324649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419162174 + 6419162175.

It is an arithmetic number, because the mean of its divisors is an integer number (6419162175).

Almost surely, 2^12838324349 is an apocalyptic number.

It is an amenable number.

12838324349 is a deficient number, since it is larger than the sum of its proper divisors (1).

12838324349 is an equidigital number, since it uses as much as digits as its factorization.

12838324349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 47.

The spelling of 12838324349 in words is "twelve billion, eight hundred thirty-eight million, three hundred twenty-four thousand, three hundred forty-nine".