5649689443 has 4 divisors (see below), whose sum is σ = 5650588440. Its totient is φ = 5648790448.

The previous prime is 5649689429. The next prime is 5649689459. The reversal of 5649689443 is 3449869465.

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 5649689443 - 2⁵ = 5649689411 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5649689413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440005 + ... + 452662.

It is an arithmetic number, because the mean of its divisors is an integer number (1412647110).

Almost surely, 2^5649689443 is an apocalyptic number.

5649689443 is a deficient number, since it is larger than the sum of its proper divisors (898997).

5649689443 is an equidigital number, since it uses as much as digits as its factorization.

5649689443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898996.

The product of its digits is 22394880, while the sum is 58.

The square root of 5649689443 is about 75164.4160690416. The cubic root of 5649689443 is about 1781.0448609180.

The spelling of 5649689443 in words is "five billion, six hundred forty-nine million, six hundred eighty-nine thousand, four hundred forty-three".