891322223198 has 8 divisors (see below), whose sum is σ = 1458527274360. Its totient is φ = 405146465080.

The previous prime is 891322223191. The next prime is 891322223201.

It is a happy number.

891322223198 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891322223191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20257323233 + ... + 20257323276.

It is an arithmetic number, because the mean of its divisors is an integer number (182315909295).

Almost surely, 2^891322223198 is an apocalyptic number.

891322223198 is a deficient number, since it is larger than the sum of its proper divisors (567205051162).

891322223198 is a wasteful number, since it uses less digits than its factorization.

891322223198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40514646522.

The product of its digits is 746496, while the sum is 50.

The spelling of 891322223198 in words is "eight hundred ninety-one billion, three hundred twenty-two million, two hundred twenty-three thousand, one hundred ninety-eight".