6806699089 has 2 divisors, whose sum is σ = 6806699090. Its totient is φ = 6806699088.

The previous prime is 6806699077. The next prime is 6806699093. The reversal of 6806699089 is 9809966086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6774606864 + 32092225 = 82308^2 + 5665^2 .

It is a cyclic number.

It is not a de Polignac number, because 6806699089 - 2⁵ = 6806699057 is a prime.

6806699089 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (6806619089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3403349544 + 3403349545.

It is an arithmetic number, because the mean of its divisors is an integer number (3403349545).

Almost surely, 2^6806699089 is an apocalyptic number.

It is an amenable number.

6806699089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6806699089 is an equidigital number, since it uses as much as digits as its factorization.

6806699089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10077696, while the sum is 61.

The square root of 6806699089 is about 82502.7217066201. The cubic root of 6806699089 is about 1895.1584107914.

The spelling of 6806699089 in words is "six billion, eight hundred six million, six hundred ninety-nine thousand, eighty-nine".