6344388673 has 8 divisors (see below), whose sum is σ = 7251334592. Its totient is φ = 5437593936.

The previous prime is 6344388647. The next prime is 6344388697. The reversal of 6344388673 is 3768834436.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6344388673 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 6344388673.

It is not an unprimeable number, because it can be changed into a prime (6344388073) 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, 74311 + ... + 134947.

It is an arithmetic number, because the mean of its divisors is an integer number (906416824).

Almost surely, 2^6344388673 is an apocalyptic number.

It is an amenable number.

6344388673 is a deficient number, since it is larger than the sum of its proper divisors (906945919).

6344388673 is a wasteful number, since it uses less digits than its factorization.

6344388673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75591.

The product of its digits is 6967296, while the sum is 52.

The square root of 6344388673 is about 79651.6708738743. The cubic root of 6344388673 is about 1851.2422796199.

The spelling of 6344388673 in words is "six billion, three hundred forty-four million, three hundred eighty-eight thousand, six hundred seventy-three".