18822969217 has 8 divisors (see below), whose sum is σ = 20300235200. Its totient is φ = 17349895440.

The previous prime is 18822969203. The next prime is 18822969233. The reversal of 18822969217 is 71296922881.

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

It is a cyclic number.

It is not a de Polignac number, because 18822969217 - 2¹¹ = 18822967169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18822969817) by changing a digit.

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, 1038717 + ... + 1056682.

It is an arithmetic number, because the mean of its divisors is an integer number (2537529400).

Almost surely, 2^18822969217 is an apocalyptic number.

It is an amenable number.

18822969217 is a deficient number, since it is larger than the sum of its proper divisors (1477265983).

18822969217 is a wasteful number, since it uses less digits than its factorization.

18822969217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096103.

The product of its digits is 1741824, while the sum is 55.

The spelling of 18822969217 in words is "eighteen billion, eight hundred twenty-two million, nine hundred sixty-nine thousand, two hundred seventeen".