422323617787 has 2 divisors, whose sum is σ = 422323617788. Its totient is φ = 422323617786.

The previous prime is 422323617739. The next prime is 422323617809. The reversal of 422323617787 is 787716323224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422323617787 - 2³¹ = 420176134139 is a prime.

It is not a weakly prime, because it can be changed into another prime (422323617707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211161808893 + 211161808894.

It is an arithmetic number, because the mean of its divisors is an integer number (211161808894).

Almost surely, 2^422323617787 is an apocalyptic number.

422323617787 is a deficient number, since it is larger than the sum of its proper divisors (1).

422323617787 is an equidigital number, since it uses as much as digits as its factorization.

422323617787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 52.

The spelling of 422323617787 in words is "four hundred twenty-two billion, three hundred twenty-three million, six hundred seventeen thousand, seven hundred eighty-seven".