6384340918 has 8 divisors (see below), whose sum is σ = 9697733280. Its totient is φ = 3151763160.

The previous prime is 6384340913. The next prime is 6384340961. The reversal of 6384340918 is 8190434836.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6384340913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20203453 + ... + 20203768.

It is an arithmetic number, because the mean of its divisors is an integer number (1212216660).

Almost surely, 2^6384340918 is an apocalyptic number.

6384340918 is a deficient number, since it is larger than the sum of its proper divisors (3313392362).

6384340918 is a wasteful number, since it uses less digits than its factorization.

6384340918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40407302.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 6384340918 is about 79902.0707991977. The cubic root of 6384340918 is about 1855.1200672060.

The spelling of 6384340918 in words is "six billion, three hundred eighty-four million, three hundred forty thousand, nine hundred eighteen".