422450345309 has 2 divisors, whose sum is σ = 422450345310. Its totient is φ = 422450345308.

The previous prime is 422450345279. The next prime is 422450345327. The reversal of 422450345309 is 903543054224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236387522809 + 186062822500 = 486197^2 + 431350^2 .

It is a cyclic number.

It is not a de Polignac number, because 422450345309 - 2³² = 418155378013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422450345209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211225172654 + 211225172655.

It is an arithmetic number, because the mean of its divisors is an integer number (211225172655).

Almost surely, 2^422450345309 is an apocalyptic number.

It is an amenable number.

422450345309 is a deficient number, since it is larger than the sum of its proper divisors (1).

422450345309 is an equidigital number, since it uses as much as digits as its factorization.

422450345309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 422450345309 in words is "four hundred twenty-two billion, four hundred fifty million, three hundred forty-five thousand, three hundred nine".