18314346643 has 8 divisors (see below), whose sum is σ = 19123562016. Its totient is φ = 17506209600.

The previous prime is 18314346581. The next prime is 18314346647. The reversal of 18314346643 is 34664341381.

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 18314346643 - 2⁹ = 18314346131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18314346643.

It is not an unprimeable number, because it can be changed into a prime (18314346647) 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, 234768 + ... + 302893.

It is an arithmetic number, because the mean of its divisors is an integer number (2390445252).

Almost surely, 2^18314346643 is an apocalyptic number.

18314346643 is a deficient number, since it is larger than the sum of its proper divisors (809215373).

18314346643 is a wasteful number, since it uses less digits than its factorization.

18314346643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539165.

The product of its digits is 497664, while the sum is 43.

The spelling of 18314346643 in words is "eighteen billion, three hundred fourteen million, three hundred forty-six thousand, six hundred forty-three".