18706885003 has 2 divisors, whose sum is σ = 18706885004. Its totient is φ = 18706885002.

The previous prime is 18706884997. The next prime is 18706885033. The reversal of 18706885003 is 30058860781.

It is a weak prime.

It is an emirp because it is prime and its reverse (30058860781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18706885003 - 2²¹ = 18704787851 is a prime.

It is not a weakly prime, because it can be changed into another prime (18706885033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9353442501 + 9353442502.

It is an arithmetic number, because the mean of its divisors is an integer number (9353442502).

Almost surely, 2^18706885003 is an apocalyptic number.

18706885003 is a deficient number, since it is larger than the sum of its proper divisors (1).

18706885003 is an equidigital number, since it uses as much as digits as its factorization.

18706885003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 18706885003 in words is "eighteen billion, seven hundred six million, eight hundred eighty-five thousand, three".