18069188849 has 8 divisors (see below), whose sum is σ = 18127459200. Its totient is φ = 18010968336.

The previous prime is 18069188821. The next prime is 18069188867. The reversal of 18069188849 is 94888196081.

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

It is not a de Polignac number, because 18069188849 - 2¹² = 18069184753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18069188791 and 18069188800.

It is not an unprimeable number, because it can be changed into a prime (18066188849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797327 + ... + 819675.

It is an arithmetic number, because the mean of its divisors is an integer number (2265932400).

Almost surely, 2^18069188849 is an apocalyptic number.

It is an amenable number.

18069188849 is a deficient number, since it is larger than the sum of its proper divisors (58270351).

18069188849 is a wasteful number, since it uses less digits than its factorization.

18069188849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24919.

The product of its (nonzero) digits is 7962624, while the sum is 62.

The spelling of 18069188849 in words is "eighteen billion, sixty-nine million, one hundred eighty-eight thousand, eight hundred forty-nine".