6563968346 has 12 divisors (see below), whose sum is σ = 10604000862. Its totient is φ = 3029333184.

The previous prime is 6563968343. The next prime is 6563968351. The reversal of 6563968346 is 6438693656.

It can be written as a sum of positive squares in 3 ways, for example, as 2625025225 + 3938943121 = 51235^2 + 62761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6563968291 and 6563968300.

It is not an unprimeable number, because it can be changed into a prime (6563968343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405170 + ... + 421058.

Almost surely, 2^6563968346 is an apocalyptic number.

6563968346 is a deficient number, since it is larger than the sum of its proper divisors (4040032516).

6563968346 is an frugal number, since it uses more digits than its factorization.

6563968346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31793 (or 15904 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 56.

The square root of 6563968346 is about 81018.3210514758. The cubic root of 6563968346 is about 1872.3577213860.

The spelling of 6563968346 in words is "six billion, five hundred sixty-three million, nine hundred sixty-eight thousand, three hundred forty-six".