5805544909 has 2 divisors, whose sum is σ = 5805544910. Its totient is φ = 5805544908.

The previous prime is 5805544907. The next prime is 5805544967. The reversal of 5805544909 is 9094455085.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5493033225 + 312511684 = 74115^2 + 17678^2 .

It is a cyclic number.

It is not a de Polignac number, because 5805544909 - 2¹ = 5805544907 is a prime.

Together with 5805544907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5805544907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2902772454 + 2902772455.

It is an arithmetic number, because the mean of its divisors is an integer number (2902772455).

Almost surely, 2^5805544909 is an apocalyptic number.

It is an amenable number.

5805544909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5805544909 is an equidigital number, since it uses as much as digits as its factorization.

5805544909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 5805544909 is about 76194.1264731081. The cubic root of 5805544909 is about 1797.2741570026.

The spelling of 5805544909 in words is "five billion, eight hundred five million, five hundred forty-four thousand, nine hundred nine".