6966211309 has 2 divisors, whose sum is σ = 6966211310. Its totient is φ = 6966211308.

The previous prime is 6966211303. The next prime is 6966211321. The reversal of 6966211309 is 9031126696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5379782409 + 1586428900 = 73347^2 + 39830^2 .

It is a cyclic number.

It is not a de Polignac number, because 6966211309 - 2⁵ = 6966211277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6966211303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3483105654 + 3483105655.

It is an arithmetic number, because the mean of its divisors is an integer number (3483105655).

Almost surely, 2^6966211309 is an apocalyptic number.

It is an amenable number.

6966211309 is a deficient number, since it is larger than the sum of its proper divisors (1).

6966211309 is an equidigital number, since it uses as much as digits as its factorization.

6966211309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 6966211309 is about 83463.8323407211. The cubic root of 6966211309 is about 1909.8483390630.

The spelling of 6966211309 in words is "six billion, nine hundred sixty-six million, two hundred eleven thousand, three hundred nine".