18000713441 has 4 divisors (see below), whose sum is σ = 18383707392. Its totient is φ = 17617719492.

The previous prime is 18000713413. The next prime is 18000713447. The reversal of 18000713441 is 14431700081.

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 a de Polignac number, because none of the positive numbers 2^k-18000713441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18000713447) 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, 191496905 + ... + 191496998.

It is an arithmetic number, because the mean of its divisors is an integer number (4595926848).

Almost surely, 2^18000713441 is an apocalyptic number.

It is an amenable number.

18000713441 is a deficient number, since it is larger than the sum of its proper divisors (382993951).

18000713441 is an equidigital number, since it uses as much as digits as its factorization.

18000713441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382993950.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 18000713441 in words is "eighteen billion, seven hundred thirteen thousand, four hundred forty-one".