6866938699 has 2 divisors, whose sum is σ = 6866938700. Its totient is φ = 6866938698.

The previous prime is 6866938583. The next prime is 6866938709. The reversal of 6866938699 is 9968396686.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6866938699 is a prime.

It is a super-3 number, since 3×6866938699³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (6866930699) 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, 3433469349 + 3433469350.

It is an arithmetic number, because the mean of its divisors is an integer number (3433469350).

Almost surely, 2^6866938699 is an apocalyptic number.

6866938699 is a deficient number, since it is larger than the sum of its proper divisors (1).

6866938699 is an equidigital number, since it uses as much as digits as its factorization.

6866938699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181398528, while the sum is 70.

The square root of 6866938699 is about 82866.9940265725. The cubic root of 6866938699 is about 1900.7327459079.

The spelling of 6866938699 in words is "six billion, eight hundred sixty-six million, nine hundred thirty-eight thousand, six hundred ninety-nine".