422256637379 has 2 divisors, whose sum is σ = 422256637380. Its totient is φ = 422256637378.

The previous prime is 422256637289. The next prime is 422256637391. The reversal of 422256637379 is 973736652224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422256637379 - 2²⁰ = 422255588803 is a prime.

It is not a weakly prime, because it can be changed into another prime (422256636379) 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, 211128318689 + 211128318690.

It is an arithmetic number, because the mean of its divisors is an integer number (211128318690).

Almost surely, 2^422256637379 is an apocalyptic number.

422256637379 is a deficient number, since it is larger than the sum of its proper divisors (1).

422256637379 is an equidigital number, since it uses as much as digits as its factorization.

422256637379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 56.

The spelling of 422256637379 in words is "four hundred twenty-two billion, two hundred fifty-six million, six hundred thirty-seven thousand, three hundred seventy-nine".