17938850222 has 4 divisors (see below), whose sum is σ = 26908275336. Its totient is φ = 8969425110.

The previous prime is 17938850219. The next prime is 17938850239. The reversal of 17938850222 is 22205883971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22205883971 = 163 ⋅136232417.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4484712554 + ... + 4484712557.

It is an arithmetic number, because the mean of its divisors is an integer number (6727068834).

Almost surely, 2^17938850222 is an apocalyptic number.

17938850222 is a deficient number, since it is larger than the sum of its proper divisors (8969425114).

17938850222 is an equidigital number, since it uses as much as digits as its factorization.

17938850222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8969425113.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 17938850222 in words is "seventeen billion, nine hundred thirty-eight million, eight hundred fifty thousand, two hundred twenty-two".