6842056709 has 2 divisors, whose sum is σ = 6842056710. Its totient is φ = 6842056708.

The previous prime is 6842056667. The next prime is 6842056723. The reversal of 6842056709 is 9076502486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6721540225 + 120516484 = 81985^2 + 10978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6842056709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6842056789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3421028354 + 3421028355.

It is an arithmetic number, because the mean of its divisors is an integer number (3421028355).

Almost surely, 2^6842056709 is an apocalyptic number.

It is an amenable number.

6842056709 is a deficient number, since it is larger than the sum of its proper divisors (1).

6842056709 is an equidigital number, since it uses as much as digits as its factorization.

6842056709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 6842056709 is about 82716.7256907574. The cubic root of 6842056709 is about 1898.4342325541.

The spelling of 6842056709 in words is "six billion, eight hundred forty-two million, fifty-six thousand, seven hundred nine".