422318949709 has 2 divisors, whose sum is σ = 422318949710. Its totient is φ = 422318949708.

The previous prime is 422318949707. The next prime is 422318949713. The reversal of 422318949709 is 907949813224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421748934084 + 570015625 = 649422^2 + 23875^2 .

It is a cyclic number.

It is not a de Polignac number, because 422318949709 - 2¹ = 422318949707 is a prime.

Together with 422318949707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422318949707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211159474854 + 211159474855.

It is an arithmetic number, because the mean of its divisors is an integer number (211159474855).

Almost surely, 2^422318949709 is an apocalyptic number.

It is an amenable number.

422318949709 is a deficient number, since it is larger than the sum of its proper divisors (1).

422318949709 is an equidigital number, since it uses as much as digits as its factorization.

422318949709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 422318949709 in words is "four hundred twenty-two billion, three hundred eighteen million, nine hundred forty-nine thousand, seven hundred nine".