18468730073 has 4 divisors (see below), whose sum is σ = 18469050240. Its totient is φ = 18468409908.

The previous prime is 18468730061. The next prime is 18468730109. The reversal of 18468730073 is 37003786481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18468730073 - 2⁶ = 18468730009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18468730043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46865 + ... + 197822.

It is an arithmetic number, because the mean of its divisors is an integer number (4617262560).

Almost surely, 2^18468730073 is an apocalyptic number.

It is an amenable number.

18468730073 is a deficient number, since it is larger than the sum of its proper divisors (320167).

18468730073 is an equidigital number, since it uses as much as digits as its factorization.

18468730073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320166.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 18468730073 in words is "eighteen billion, four hundred sixty-eight million, seven hundred thirty thousand, seventy-three".