18023913841 has 8 divisors (see below), whose sum is σ = 18488185760. Its totient is φ = 17561692512.

The previous prime is 18023913827. The next prime is 18023913881. The reversal of 18023913841 is 14831932081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18023913841 - 2¹¹ = 18023911793 is a prime.

It is a super-2 number, since 2×18023913841² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18023913794 and 18023913803.

It is not an unprimeable number, because it can be changed into a prime (18023913881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494835 + ... + 530008.

It is an arithmetic number, because the mean of its divisors is an integer number (2311023220).

Almost surely, 2^18023913841 is an apocalyptic number.

It is an amenable number.

18023913841 is a deficient number, since it is larger than the sum of its proper divisors (464271919).

18023913841 is a wasteful number, since it uses less digits than its factorization.

18023913841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025295.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 18023913841 in words is "eighteen billion, twenty-three million, nine hundred thirteen thousand, eight hundred forty-one".