18710282243 has 4 divisors (see below), whose sum is σ = 19695033960. Its totient is φ = 17725530528.

The previous prime is 18710282237. The next prime is 18710282251. The reversal of 18710282243 is 34228201781.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18710282243 is a prime.

It is a super-2 number, since 2×18710282243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18710282197 and 18710282206.

It is not an unprimeable number, because it can be changed into a prime (18710282203) 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, 492375830 + ... + 492375867.

It is an arithmetic number, because the mean of its divisors is an integer number (4923758490).

Almost surely, 2^18710282243 is an apocalyptic number.

18710282243 is a deficient number, since it is larger than the sum of its proper divisors (984751717).

18710282243 is an equidigital number, since it uses as much as digits as its factorization.

18710282243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984751716.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 18710282243 in words is "eighteen billion, seven hundred ten million, two hundred eighty-two thousand, two hundred forty-three".