28018047818 has 8 divisors (see below), whose sum is σ = 42103905312. Its totient is φ = 13983412716.

The previous prime is 28018047817. The next prime is 28018047833. The reversal of 28018047818 is 81874081082.

28018047818 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×28018047818² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28018047817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12804230 + ... + 12806417.

It is an arithmetic number, because the mean of its divisors is an integer number (5262988164).

Almost surely, 2^28018047818 is an apocalyptic number.

28018047818 is a deficient number, since it is larger than the sum of its proper divisors (14085857494).

28018047818 is a wasteful number, since it uses less digits than its factorization.

28018047818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25611196.

The product of its (nonzero) digits is 229376, while the sum is 47.

The spelling of 28018047818 in words is "twenty-eight billion, eighteen million, forty-seven thousand, eight hundred eighteen".