6816949099 has 2 divisors, whose sum is σ = 6816949100. Its totient is φ = 6816949098.

The previous prime is 6816949033. The next prime is 6816949109. The reversal of 6816949099 is 9909496186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6816949099 - 2¹⁷ = 6816818027 is a prime.

It is not a weakly prime, because it can be changed into another prime (6816949019) 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, 3408474549 + 3408474550.

It is an arithmetic number, because the mean of its divisors is an integer number (3408474550).

Almost surely, 2^6816949099 is an apocalyptic number.

6816949099 is a deficient number, since it is larger than the sum of its proper divisors (1).

6816949099 is an equidigital number, since it uses as much as digits as its factorization.

6816949099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7558272, while the sum is 61.

The square root of 6816949099 is about 82564.8175617194. The cubic root of 6816949099 is about 1896.1092216444.

The spelling of 6816949099 in words is "six billion, eight hundred sixteen million, nine hundred forty-nine thousand, ninety-nine".