426322223617 has 2 divisors, whose sum is σ = 426322223618. Its totient is φ = 426322223616.

The previous prime is 426322223563. The next prime is 426322223627. The reversal of 426322223617 is 716322223624.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379109886961 + 47212336656 = 615719^2 + 217284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426322223617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426322223617.

It is not a weakly prime, because it can be changed into another prime (426322223627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213161111808 + 213161111809.

It is an arithmetic number, because the mean of its divisors is an integer number (213161111809).

Almost surely, 2^426322223617 is an apocalyptic number.

It is an amenable number.

426322223617 is a deficient number, since it is larger than the sum of its proper divisors (1).

426322223617 is an equidigital number, since it uses as much as digits as its factorization.

426322223617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 40.

The spelling of 426322223617 in words is "four hundred twenty-six billion, three hundred twenty-two million, two hundred twenty-three thousand, six hundred seventeen".