18140834143 has 8 divisors (see below), whose sum is σ = 18352997936. Its totient is φ = 17929900800.

The previous prime is 18140834141. The next prime is 18140834177. The reversal of 18140834143 is 34143804181.

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 18140834143 - 2¹ = 18140834141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18140834141) 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, 277938 + ... + 336943.

It is an arithmetic number, because the mean of its divisors is an integer number (2294124742).

Almost surely, 2^18140834143 is an apocalyptic number.

18140834143 is a deficient number, since it is larger than the sum of its proper divisors (212163793).

18140834143 is a wasteful number, since it uses less digits than its factorization.

18140834143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615225.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 18140834143 in words is "eighteen billion, one hundred forty million, eight hundred thirty-four thousand, one hundred forty-three".