18089866003 has 4 divisors (see below), whose sum is σ = 19734399288. Its totient is φ = 16445332720.

The previous prime is 18089865973. The next prime is 18089866033. The reversal of 18089866003 is 30066898081.

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

It is an interprime number because it is at equal distance from previous prime (18089865973) and next prime (18089866033).

It is a cyclic number.

It is not a de Polignac number, because 18089866003 - 2¹⁷ = 18089734931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18089866033) 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, 822266626 + ... + 822266647.

It is an arithmetic number, because the mean of its divisors is an integer number (4933599822).

Almost surely, 2^18089866003 is an apocalyptic number.

18089866003 is a deficient number, since it is larger than the sum of its proper divisors (1644533285).

18089866003 is a wasteful number, since it uses less digits than its factorization.

18089866003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644533284.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 18089866003 in words is "eighteen billion, eighty-nine million, eight hundred sixty-six thousand, three".