6800639099 has 2 divisors, whose sum is σ = 6800639100. Its totient is φ = 6800639098.

The previous prime is 6800639089. The next prime is 6800639101. The reversal of 6800639099 is 9909360086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6800639099 - 2¹² = 6800635003 is a prime.

Together with 6800639101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6800639029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400319549 + 3400319550.

It is an arithmetic number, because the mean of its divisors is an integer number (3400319550).

Almost surely, 2^6800639099 is an apocalyptic number.

6800639099 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800639099 is an equidigital number, since it uses as much as digits as its factorization.

6800639099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 6800639099 is about 82465.9875281925. The cubic root of 6800639099 is about 1894.5958252755.

The spelling of 6800639099 in words is "six billion, eight hundred million, six hundred thirty-nine thousand, ninety-nine".