18048380005 has 4 divisors (see below), whose sum is σ = 21658056012. Its totient is φ = 14438704000.

The previous prime is 18048379967. The next prime is 18048380011. The reversal of 18048380005 is 50008384081.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7665177601 + 10383202404 = 87551^2 + 101898^2 .

It is not a de Polignac number, because 18048380005 - 2⁹ = 18048379493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804837996 + ... + 1804838005.

It is an arithmetic number, because the mean of its divisors is an integer number (5414514003).

Almost surely, 2^18048380005 is an apocalyptic number.

It is an amenable number.

18048380005 is a deficient number, since it is larger than the sum of its proper divisors (3609676007).

18048380005 is an equidigital number, since it uses as much as digits as its factorization.

18048380005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609676006.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 18048380005 in words is "eighteen billion, forty-eight million, three hundred eighty thousand, five".