18343674273 has 8 divisors (see below), whose sum is σ = 24461484736. Its totient is φ = 12227490000.

The previous prime is 18343674263. The next prime is 18343674343. The reversal of 18343674273 is 37247634381.

It is a happy number.

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

It is not a de Polignac number, because 18343674273 - 2¹⁶ = 18343608737 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 (18343674253) 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, 379978 + ... + 425523.

It is an arithmetic number, because the mean of its divisors is an integer number (3057685592).

Almost surely, 2^18343674273 is an apocalyptic number.

It is an amenable number.

18343674273 is a deficient number, since it is larger than the sum of its proper divisors (6117810463).

18343674273 is an equidigital number, since it uses as much as digits as its factorization.

18343674273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813095.

The product of its digits is 2032128, while the sum is 48.

The spelling of 18343674273 in words is "eighteen billion, three hundred forty-three million, six hundred seventy-four thousand, two hundred seventy-three".