21889683922 has 16 divisors (see below), whose sum is σ = 34768712160. Its totient is φ = 10300214848.

The previous prime is 21889683887. The next prime is 21889683941. The reversal of 21889683922 is 22938698812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808773 + ... + 835399.

It is an arithmetic number, because the mean of its divisors is an integer number (2173044510).

Almost surely, 2^21889683922 is an apocalyptic number.

21889683922 is a deficient number, since it is larger than the sum of its proper divisors (12879028238).

21889683922 is a wasteful number, since it uses less digits than its factorization.

21889683922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50825.

The product of its digits is 5971968, while the sum is 58.

The spelling of 21889683922 in words is "twenty-one billion, eight hundred eighty-nine million, six hundred eighty-three thousand, nine hundred twenty-two".