18289795919 has 8 divisors (see below), whose sum is σ = 18602538000. Its totient is φ = 17977145472.

The previous prime is 18289795873. The next prime is 18289795957. The reversal of 18289795919 is 91959798281.

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 18289795919 - 2¹² = 18289791823 is a prime.

It is a super-2 number, since 2×18289795919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18289795969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469127 + ... + 506615.

It is an arithmetic number, because the mean of its divisors is an integer number (2325317250).

Almost surely, 2^18289795919 is an apocalyptic number.

18289795919 is a deficient number, since it is larger than the sum of its proper divisors (312742081).

18289795919 is an equidigital number, since it uses as much as digits as its factorization.

18289795919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45817.

The product of its digits is 29393280, while the sum is 68.

The spelling of 18289795919 in words is "eighteen billion, two hundred eighty-nine million, seven hundred ninety-five thousand, nine hundred nineteen".