5681966843 has 16 divisors (see below), whose sum is σ = 6839961600. Its totient is φ = 4713143400.

The previous prime is 5681966819. The next prime is 5681966867. The reversal of 5681966843 is 3486691865.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5681966819) and next prime (5681966867).

It is not a de Polignac number, because 5681966843 - 2¹⁰ = 5681965819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5681966893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256553 + ... + 277818.

It is an arithmetic number, because the mean of its divisors is an integer number (427497600).

Almost surely, 2^5681966843 is an apocalyptic number.

5681966843 is a deficient number, since it is larger than the sum of its proper divisors (1157994757).

5681966843 is an equidigital number, since it uses as much as digits as its factorization.

5681966843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534423 (or 534409 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The square root of 5681966843 is about 75378.8222447127. The cubic root of 5681966843 is about 1784.4302013171.

The spelling of 5681966843 in words is "five billion, six hundred eighty-one million, nine hundred sixty-six thousand, eight hundred forty-three".