18868338717 has 8 divisors (see below), whose sum is σ = 25196671296. Its totient is φ = 12559449312.

The previous prime is 18868338707. The next prime is 18868338733. The reversal of 18868338717 is 71783386881.

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

It is not a de Polignac number, because 18868338717 - 2¹⁶ = 18868273181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18868338707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4858528 + ... + 4862409.

It is an arithmetic number, because the mean of its divisors is an integer number (3149583912).

Almost surely, 2^18868338717 is an apocalyptic number.

It is an amenable number.

18868338717 is a deficient number, since it is larger than the sum of its proper divisors (6328332579).

18868338717 is an equidigital number, since it uses as much as digits as its factorization.

18868338717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9721587.

The product of its digits is 10838016, while the sum is 60.

The spelling of 18868338717 in words is "eighteen billion, eight hundred sixty-eight million, three hundred thirty-eight thousand, seven hundred seventeen".