5663844647 has 8 divisors (see below), whose sum is σ = 5772885216. Its totient is φ = 5555837952.

The previous prime is 5663844607. The next prime is 5663844721. The reversal of 5663844647 is 7464483665.

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 5663844647 - 2¹⁴ = 5663828263 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 (5663844607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247403 + ... + 269324.

It is an arithmetic number, because the mean of its divisors is an integer number (721610652).

Almost surely, 2^5663844647 is an apocalyptic number.

5663844647 is a deficient number, since it is larger than the sum of its proper divisors (109040569).

5663844647 is a wasteful number, since it uses less digits than its factorization.

5663844647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516937.

The product of its digits is 11612160, while the sum is 53.

The square root of 5663844647 is about 75258.5187669808. The cubic root of 5663844647 is about 1782.5310799134.

The spelling of 5663844647 in words is "five billion, six hundred sixty-three million, eight hundred forty-four thousand, six hundred forty-seven".