18706055759 has 4 divisors (see below), whose sum is σ = 18706937520. Its totient is φ = 18705174000.

The previous prime is 18706055749. The next prime is 18706055813. The reversal of 18706055759 is 95755060781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18706055759 - 2¹⁶ = 18705990223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18706055759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18706055749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408254 + ... + 451755.

It is an arithmetic number, because the mean of its divisors is an integer number (4676734380).

Almost surely, 2^18706055759 is an apocalyptic number.

18706055759 is a deficient number, since it is larger than the sum of its proper divisors (881761).

18706055759 is an equidigital number, since it uses as much as digits as its factorization.

18706055759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881760.

The product of its (nonzero) digits is 2646000, while the sum is 53.

The spelling of 18706055759 in words is "eighteen billion, seven hundred six million, fifty-five thousand, seven hundred fifty-nine".