6808349069 has 2 divisors, whose sum is σ = 6808349070. Its totient is φ = 6808349068.

The previous prime is 6808349047. The next prime is 6808349099. The reversal of 6808349069 is 9609438086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6139506025 + 668843044 = 78355^2 + 25862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6808349069 is a prime.

It is a super-2 number, since 2×6808349069² = 92707234090706333522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6808349069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6808349099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3404174534 + 3404174535.

It is an arithmetic number, because the mean of its divisors is an integer number (3404174535).

Almost surely, 2^6808349069 is an apocalyptic number.

It is an amenable number.

6808349069 is a deficient number, since it is larger than the sum of its proper divisors (1).

6808349069 is an equidigital number, since it uses as much as digits as its factorization.

6808349069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 6808349069 is about 82512.7206496065. The cubic root of 6808349069 is about 1895.3115305735.

The spelling of 6808349069 in words is "six billion, eight hundred eight million, three hundred forty-nine thousand, sixty-nine".