5809856243 has 2 divisors, whose sum is σ = 5809856244. Its totient is φ = 5809856242.

The previous prime is 5809856137. The next prime is 5809856279. The reversal of 5809856243 is 3426589085.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5809856243 is a prime.

It is a super-3 number, since 3×5809856243³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5809856191 and 5809856200.

It is not a weakly prime, because it can be changed into another prime (5809856293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2904928121 + 2904928122.

It is an arithmetic number, because the mean of its divisors is an integer number (2904928122).

Almost surely, 2^5809856243 is an apocalyptic number.

5809856243 is a deficient number, since it is larger than the sum of its proper divisors (1).

5809856243 is an equidigital number, since it uses as much as digits as its factorization.

5809856243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The square root of 5809856243 is about 76222.4129964409. The cubic root of 5809856243 is about 1797.7189462505.

The spelling of 5809856243 in words is "five billion, eight hundred nine million, eight hundred fifty-six thousand, two hundred forty-three".