6808698643 has 2 divisors, whose sum is σ = 6808698644. Its totient is φ = 6808698642.

The previous prime is 6808698629. The next prime is 6808698683. The reversal of 6808698643 is 3468968086.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6808698643 is a prime.

It is a super-2 number, since 2×6808698643² = 92716754422380082898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6808698683) 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, 3404349321 + 3404349322.

It is an arithmetic number, because the mean of its divisors is an integer number (3404349322).

Almost surely, 2^6808698643 is an apocalyptic number.

6808698643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6808698643 is an equidigital number, since it uses as much as digits as its factorization.

6808698643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11943936, while the sum is 58.

The square root of 6808698643 is about 82514.8389260986. The cubic root of 6808698643 is about 1895.3439682118.

The spelling of 6808698643 in words is "six billion, eight hundred eight million, six hundred ninety-eight thousand, six hundred forty-three".