422589813696991 has 4 divisors (see below), whose sum is σ = 422590465206400. Its totient is φ = 422589162187584.

The previous prime is 422589813696971. The next prime is 422589813697001. The reversal of 422589813696991 is 199696318985224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422589813696991 - 2²³ = 422589805308383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422589813696901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324780786 + ... + 326079343.

It is an arithmetic number, because the mean of its divisors is an integer number (105647616301600).

Almost surely, 2^{422589813696991} is an apocalyptic number.

422589813696991 is a deficient number, since it is larger than the sum of its proper divisors (651509409).

422589813696991 is an equidigital number, since it uses as much as digits as its factorization.

422589813696991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651509408.

The product of its digits is 3627970560, while the sum is 82.

The spelling of 422589813696991 in words is "four hundred twenty-two trillion, five hundred eighty-nine billion, eight hundred thirteen million, six hundred ninety-six thousand, nine hundred ninety-one".