5685809471 has 2 divisors, whose sum is σ = 5685809472. Its totient is φ = 5685809470.

The previous prime is 5685809453. The next prime is 5685809497. The reversal of 5685809471 is 1749085865.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5685809471 is a prime.

It is a super-3 number, since 3×5685809471³ (a number of 30 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5685803471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2842904735 + 2842904736.

It is an arithmetic number, because the mean of its divisors is an integer number (2842904736).

Almost surely, 2^5685809471 is an apocalyptic number.

5685809471 is a deficient number, since it is larger than the sum of its proper divisors (1).

5685809471 is an equidigital number, since it uses as much as digits as its factorization.

5685809471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The square root of 5685809471 is about 75404.3067138741. The cubic root of 5685809471 is about 1784.8323716973.

The spelling of 5685809471 in words is "five billion, six hundred eighty-five million, eight hundred nine thousand, four hundred seventy-one".