8422686709 has 2 divisors, whose sum is σ = 8422686710. Its totient is φ = 8422686708.

The previous prime is 8422686689. The next prime is 8422686749. The reversal of 8422686709 is 9076862248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8342082225 + 80604484 = 91335^2 + 8978^2 .

It is a cyclic number.

It is not a de Polignac number, because 8422686709 - 2¹⁹ = 8422162421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8422686749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4211343354 + 4211343355.

It is an arithmetic number, because the mean of its divisors is an integer number (4211343355).

Almost surely, 2^8422686709 is an apocalyptic number.

It is an amenable number.

8422686709 is a deficient number, since it is larger than the sum of its proper divisors (1).

8422686709 is an equidigital number, since it uses as much as digits as its factorization.

8422686709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 8422686709 is about 91775.1965892746. The cubic root of 8422686709 is about 2034.6211231939.

The spelling of 8422686709 in words is "eight billion, four hundred twenty-two million, six hundred eighty-six thousand, seven hundred nine".