18701840017 has 16 divisors (see below), whose sum is σ = 22500207360. Its totient is φ = 15197478912.

The previous prime is 18701839993. The next prime is 18701840039. The reversal of 18701840017 is 71004810781.

It is not a de Polignac number, because 18701840017 - 2¹⁹ = 18701315729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18701840617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495792 + ... + 532177.

It is an arithmetic number, because the mean of its divisors is an integer number (1406262960).

Almost surely, 2^18701840017 is an apocalyptic number.

It is an amenable number.

18701840017 is a deficient number, since it is larger than the sum of its proper divisors (3798367343).

18701840017 is a wasteful number, since it uses less digits than its factorization.

18701840017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028112.

The product of its (nonzero) digits is 12544, while the sum is 37.

The spelling of 18701840017 in words is "eighteen billion, seven hundred one million, eight hundred forty thousand, seventeen".