18430764803 has 4 divisors (see below), whose sum is σ = 20106288888. Its totient is φ = 16755240720.

The previous prime is 18430764797. The next prime is 18430764811. The reversal of 18430764803 is 30846703481.

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 18430764803 - 2¹⁰ = 18430763779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18430764403) 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, 837762026 + ... + 837762047.

It is an arithmetic number, because the mean of its divisors is an integer number (5026572222).

Almost surely, 2^18430764803 is an apocalyptic number.

18430764803 is a deficient number, since it is larger than the sum of its proper divisors (1675524085).

18430764803 is a wasteful number, since it uses less digits than its factorization.

18430764803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675524084.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 18430764803 in words is "eighteen billion, four hundred thirty million, seven hundred sixty-four thousand, eight hundred three".