18118340833 has 8 divisors (see below), whose sum is σ = 18172605440. Its totient is φ = 18064136160.

The previous prime is 18118340803. The next prime is 18118340837. The reversal of 18118340833 is 33804381181.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18118340833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18118340837) 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, 631741 + ... + 659797.

It is an arithmetic number, because the mean of its divisors is an integer number (2271575680).

Almost surely, 2^18118340833 is an apocalyptic number.

It is an amenable number.

18118340833 is a deficient number, since it is larger than the sum of its proper divisors (54264607).

18118340833 is a wasteful number, since it uses less digits than its factorization.

18118340833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29967.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 18118340833 in words is "eighteen billion, one hundred eighteen million, three hundred forty thousand, eight hundred thirty-three".