22991766889 has 16 divisors (see below), whose sum is σ = 28301253120. Its totient is φ = 18188913600.

The previous prime is 22991766887. The next prime is 22991766953. The reversal of 22991766889 is 98866719922.

It is not a de Polignac number, because 22991766889 - 2¹ = 22991766887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22991766881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090752 + ... + 1111630.

It is an arithmetic number, because the mean of its divisors is an integer number (1768828320).

Almost surely, 2^22991766889 is an apocalyptic number.

It is an amenable number.

22991766889 is a deficient number, since it is larger than the sum of its proper divisors (5309486231).

22991766889 is a wasteful number, since it uses less digits than its factorization.

22991766889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33000.

The product of its digits is 47029248, while the sum is 67.

The spelling of 22991766889 in words is "twenty-two billion, nine hundred ninety-one million, seven hundred sixty-six thousand, eight hundred eighty-nine".