18085743863 has 8 divisors (see below), whose sum is σ = 19731062160. Its totient is φ = 16440618880.

The previous prime is 18085743857. The next prime is 18085743899. The reversal of 18085743863 is 36834758081.

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 18085743863 - 2¹⁸ = 18085481719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085743833) 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, 205103 + ... + 279711.

It is an arithmetic number, because the mean of its divisors is an integer number (2466382770).

Almost surely, 2^18085743863 is an apocalyptic number.

18085743863 is a deficient number, since it is larger than the sum of its proper divisors (1645318297).

18085743863 is a wasteful number, since it uses less digits than its factorization.

18085743863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96657.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 18085743863 in words is "eighteen billion, eighty-five million, seven hundred forty-three thousand, eight hundred sixty-three".