18203439788222 has 8 divisors (see below), whose sum is σ = 29405556581016. Its totient is φ = 8401587594552.

The previous prime is 18203439788221. The next prime is 18203439788227. The reversal of 18203439788222 is 22288793430281.

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 (18203439788221) 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, 350066149748 + ... + 350066149799.

It is an arithmetic number, because the mean of its divisors is an integer number (3675694572627).

Almost surely, 2^{18203439788222} is an apocalyptic number.

18203439788222 is a deficient number, since it is larger than the sum of its proper divisors (11202116792794).

18203439788222 is a wasteful number, since it uses less digits than its factorization.

18203439788222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700132299562.

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 18203439788222 in words is "eighteen trillion, two hundred three billion, four hundred thirty-nine million, seven hundred eighty-eight thousand, two hundred twenty-two".