18243885914 has 8 divisors (see below), whose sum is σ = 27366437280. Its totient is φ = 9121740156.

The previous prime is 18243885901. The next prime is 18243885929. The reversal of 18243885914 is 41958834281.

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

It is a Curzon 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, 66947 + ... + 202409.

It is an arithmetic number, because the mean of its divisors is an integer number (3420804660).

Almost surely, 2^18243885914 is an apocalyptic number.

18243885914 is a deficient number, since it is larger than the sum of its proper divisors (9122551366).

18243885914 is a wasteful number, since it uses less digits than its factorization.

18243885914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202804.

The product of its digits is 2211840, while the sum is 53.

The spelling of 18243885914 in words is "eighteen billion, two hundred forty-three million, eight hundred eighty-five thousand, nine hundred fourteen".