6683839979 has 2 divisors, whose sum is σ = 6683839980. Its totient is φ = 6683839978.

The previous prime is 6683839973. The next prime is 6683840027. The reversal of 6683839979 is 9799383866.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6683839979 is a prime.

It is not a weakly prime, because it can be changed into another prime (6683839973) 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, 3341919989 + 3341919990.

It is an arithmetic number, because the mean of its divisors is an integer number (3341919990).

Almost surely, 2^6683839979 is an apocalyptic number.

6683839979 is a deficient number, since it is larger than the sum of its proper divisors (1).

6683839979 is an equidigital number, since it uses as much as digits as its factorization.

6683839979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105815808, while the sum is 68.

The square root of 6683839979 is about 81754.7550849490. The cubic root of 6683839979 is about 1883.6867426444.

The spelling of 6683839979 in words is "six billion, six hundred eighty-three million, eight hundred thirty-nine thousand, nine hundred seventy-nine".