6838879913 has 2 divisors, whose sum is σ = 6838879914. Its totient is φ = 6838879912.

The previous prime is 6838879897. The next prime is 6838879967. The reversal of 6838879913 is 3199788386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5674910224 + 1163969689 = 75332^2 + 34117^2 .

It is a cyclic number.

It is not a de Polignac number, because 6838879913 - 2⁴ = 6838879897 is a prime.

It is not a weakly prime, because it can be changed into another prime (6838879013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3419439956 + 3419439957.

It is an arithmetic number, because the mean of its divisors is an integer number (3419439957).

Almost surely, 2^6838879913 is an apocalyptic number.

It is an amenable number.

6838879913 is a deficient number, since it is larger than the sum of its proper divisors (1).

6838879913 is an equidigital number, since it uses as much as digits as its factorization.

6838879913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 62.

The square root of 6838879913 is about 82697.5205976576. The cubic root of 6838879913 is about 1898.1403700422.

The spelling of 6838879913 in words is "six billion, eight hundred thirty-eight million, eight hundred seventy-nine thousand, nine hundred thirteen".