422038289209 has 2 divisors, whose sum is σ = 422038289210. Its totient is φ = 422038289208.

The previous prime is 422038289207. The next prime is 422038289327. The reversal of 422038289209 is 902982830224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277312826025 + 144725463184 = 526605^2 + 380428^2 .

It is a cyclic number.

It is not a de Polignac number, because 422038289209 - 2¹ = 422038289207 is a prime.

Together with 422038289207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (422038289207) 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, 211019144604 + 211019144605.

It is an arithmetic number, because the mean of its divisors is an integer number (211019144605).

Almost surely, 2^422038289209 is an apocalyptic number.

It is an amenable number.

422038289209 is a deficient number, since it is larger than the sum of its proper divisors (1).

422038289209 is an equidigital number, since it uses as much as digits as its factorization.

422038289209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 422038289209 in words is "four hundred twenty-two billion, thirty-eight million, two hundred eighty-nine thousand, two hundred nine".