6568196819 has 4 divisors (see below), whose sum is σ = 6629581944. Its totient is φ = 6506811696.

The previous prime is 6568196813. The next prime is 6568196851. The reversal of 6568196819 is 9186918656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6568196819 - 2¹² = 6568192723 is a prime.

It is a super-4 number, since 4×6568196819⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6568196813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30692402 + ... + 30692615.

It is an arithmetic number, because the mean of its divisors is an integer number (1657395486).

Almost surely, 2^6568196819 is an apocalyptic number.

6568196819 is a deficient number, since it is larger than the sum of its proper divisors (61385125).

6568196819 is a wasteful number, since it uses less digits than its factorization.

6568196819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61385124.

The product of its digits is 5598720, while the sum is 59.

The square root of 6568196819 is about 81044.4126328274. The cubic root of 6568196819 is about 1872.7596893312.

The spelling of 6568196819 in words is "six billion, five hundred sixty-eight million, one hundred ninety-six thousand, eight hundred nineteen".