18867118003 has 2 divisors, whose sum is σ = 18867118004. Its totient is φ = 18867118002.

The previous prime is 18867117991. The next prime is 18867118019. The reversal of 18867118003 is 30081176881.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18867118003 is a prime.

It is not a weakly prime, because it can be changed into another prime (18867118073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9433559001 + 9433559002.

It is an arithmetic number, because the mean of its divisors is an integer number (9433559002).

Almost surely, 2^18867118003 is an apocalyptic number.

18867118003 is a deficient number, since it is larger than the sum of its proper divisors (1).

18867118003 is an equidigital number, since it uses as much as digits as its factorization.

18867118003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 18867118003 in words is "eighteen billion, eight hundred sixty-seven million, one hundred eighteen thousand, three".