422051145434509 has 2 divisors, whose sum is σ = 422051145434510. Its totient is φ = 422051145434508.

The previous prime is 422051145434507. The next prime is 422051145434521. The reversal of 422051145434509 is 905434541150224.

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., 226484289866025 + 195566855568484 = 15049395^2 + 13984522^2 .

It is a cyclic number.

It is not a de Polignac number, because 422051145434509 - 2¹ = 422051145434507 is a prime.

It is a super-2 number, since 2×422051145434509² (a number of 30 digits) contains 22 as substring.

Together with 422051145434507, 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 (422051145434507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211025572717254 + 211025572717255.

It is an arithmetic number, because the mean of its divisors is an integer number (211025572717255).

Almost surely, 2^{422051145434509} is an apocalyptic number.

It is an amenable number.

422051145434509 is a deficient number, since it is larger than the sum of its proper divisors (1).

422051145434509 is an equidigital number, since it uses as much as digits as its factorization.

422051145434509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 422051145434509 in words is "four hundred twenty-two trillion, fifty-one billion, one hundred forty-five million, four hundred thirty-four thousand, five hundred nine".