6813683609 has 2 divisors, whose sum is σ = 6813683610. Its totient is φ = 6813683608.

The previous prime is 6813683593. The next prime is 6813683621. The reversal of 6813683609 is 9063863186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6496843609 + 316840000 = 80603^2 + 17800^2 .

It is a cyclic number.

It is not a de Polignac number, because 6813683609 - 2⁴ = 6813683593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6813683659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406841804 + 3406841805.

It is an arithmetic number, because the mean of its divisors is an integer number (3406841805).

Almost surely, 2^6813683609 is an apocalyptic number.

It is an amenable number.

6813683609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6813683609 is an equidigital number, since it uses as much as digits as its factorization.

6813683609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 6813683609 is about 82545.0398812672. The cubic root of 6813683609 is about 1895.8064119593.

The spelling of 6813683609 in words is "six billion, eight hundred thirteen million, six hundred eighty-three thousand, six hundred nine".