422891304505 has 8 divisors (see below), whose sum is σ = 515043738432. Its totient is φ = 333263594928.

The previous prime is 422891304469. The next prime is 422891304527. The reversal of 422891304505 is 505403198224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422891304505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 631180717 + ... + 631181386.

It is an arithmetic number, because the mean of its divisors is an integer number (64380467304).

Almost surely, 2^422891304505 is an apocalyptic number.

It is an amenable number.

422891304505 is a deficient number, since it is larger than the sum of its proper divisors (92152433927).

422891304505 is a wasteful number, since it uses less digits than its factorization.

422891304505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262362175.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 422891304505 in words is "four hundred twenty-two billion, eight hundred ninety-one million, three hundred four thousand, five hundred five".