18668683353 has 8 divisors (see below), whose sum is σ = 24892234848. Its totient is φ = 12445460384.

The previous prime is 18668683337. The next prime is 18668683367. The reversal of 18668683353 is 35338686681.

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 18668683353 - 2⁴ = 18668683337 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18668683293 and 18668683302.

It is not an unprimeable number, because it can be changed into a prime (18668683303) 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, 125326 + ... + 230312.

It is an arithmetic number, because the mean of its divisors is an integer number (3111529356).

Almost surely, 2^18668683353 is an apocalyptic number.

It is an amenable number.

18668683353 is a deficient number, since it is larger than the sum of its proper divisors (6223551495).

18668683353 is a wasteful number, since it uses less digits than its factorization.

18668683353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164263.

The product of its digits is 14929920, while the sum is 57.

The spelling of 18668683353 in words is "eighteen billion, six hundred sixty-eight million, six hundred eighty-three thousand, three hundred fifty-three".