6822942409 has 2 divisors, whose sum is σ = 6822942410. Its totient is φ = 6822942408.

The previous prime is 6822942403. The next prime is 6822942473. The reversal of 6822942409 is 9042492286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4891603600 + 1931338809 = 69940^2 + 43947^2 .

It is a cyclic number.

It is not a de Polignac number, because 6822942409 - 2²⁵ = 6789387977 is a prime.

It is not a weakly prime, because it can be changed into another prime (6822942403) 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, 3411471204 + 3411471205.

It is an arithmetic number, because the mean of its divisors is an integer number (3411471205).

Almost surely, 2^6822942409 is an apocalyptic number.

It is an amenable number.

6822942409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6822942409 is an equidigital number, since it uses as much as digits as its factorization.

6822942409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 6822942409 is about 82601.1041633222. The cubic root of 6822942409 is about 1896.6647312281.

The spelling of 6822942409 in words is "six billion, eight hundred twenty-two million, nine hundred forty-two thousand, four hundred nine".