6468338645 has 8 divisors (see below), whose sum is σ = 8099485056. Its totient is φ = 4949685136.

The previous prime is 6468338633. The next prime is 6468338647. The reversal of 6468338645 is 5468338646.

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 6468338645 - 2⁴ = 6468338629 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 (6468338647) 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, 28123097 + ... + 28123326.

It is an arithmetic number, because the mean of its divisors is an integer number (1012435632).

Almost surely, 2^6468338645 is an apocalyptic number.

It is an amenable number.

6468338645 is a deficient number, since it is larger than the sum of its proper divisors (1631146411).

6468338645 is a wasteful number, since it uses less digits than its factorization.

6468338645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56246451.

The product of its digits is 9953280, while the sum is 53.

The square root of 6468338645 is about 80425.9823999682. The cubic root of 6468338645 is about 1863.2204820022.

Subtracting from 6468338645 its reverse (5468338646), we obtain a palindrome (999999999).

The spelling of 6468338645 in words is "six billion, four hundred sixty-eight million, three hundred thirty-eight thousand, six hundred forty-five".