6938169349 has 2 divisors, whose sum is σ = 6938169350. Its totient is φ = 6938169348.

The previous prime is 6938169323. The next prime is 6938169401. The reversal of 6938169349 is 9439618396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5797756449 + 1140412900 = 76143^2 + 33770^2 .

It is a cyclic number.

It is not a de Polignac number, because 6938169349 - 2¹⁹ = 6937645061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6938169293 and 6938169302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6938149349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469084674 + 3469084675.

It is an arithmetic number, because the mean of its divisors is an integer number (3469084675).

Almost surely, 2^6938169349 is an apocalyptic number.

It is an amenable number.

6938169349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6938169349 is an equidigital number, since it uses as much as digits as its factorization.

6938169349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7558272, while the sum is 58.

The square root of 6938169349 is about 83295.6742514280. The cubic root of 6938169349 is about 1907.2822424562.

The spelling of 6938169349 in words is "six billion, nine hundred thirty-eight million, one hundred sixty-nine thousand, three hundred forty-nine".