6463316643 has 8 divisors (see below), whose sum is σ = 9848863488. Its totient is φ = 3693323784.

The previous prime is 6463316617. The next prime is 6463316653. The reversal of 6463316643 is 3466133646.

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

It is not a de Polignac number, because 6463316643 - 2¹⁰ = 6463315619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6463316595 and 6463316604.

It is not an unprimeable number, because it can be changed into a prime (6463316603) 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, 153888471 + ... + 153888512.

It is an arithmetic number, because the mean of its divisors is an integer number (1231107936).

Almost surely, 2^6463316643 is an apocalyptic number.

6463316643 is a deficient number, since it is larger than the sum of its proper divisors (3385546845).

6463316643 is a wasteful number, since it uses less digits than its factorization.

6463316643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307776993.

The product of its digits is 559872, while the sum is 42.

The square root of 6463316643 is about 80394.7550714597. The cubic root of 6463316643 is about 1862.7381572429.

The spelling of 6463316643 in words is "six billion, four hundred sixty-three million, three hundred sixteen thousand, six hundred forty-three".