5811866897 has 2 divisors, whose sum is σ = 5811866898. Its totient is φ = 5811866896.

The previous prime is 5811866873. The next prime is 5811866911. The reversal of 5811866897 is 7986681185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4671859201 + 1140007696 = 68351^2 + 33764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5811866897 - 2⁶ = 5811866833 is a prime.

It is not a weakly prime, because it can be changed into another prime (5811896897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2905933448 + 2905933449.

It is an arithmetic number, because the mean of its divisors is an integer number (2905933449).

Almost surely, 2^5811866897 is an apocalyptic number.

It is an amenable number.

5811866897 is a deficient number, since it is larger than the sum of its proper divisors (1).

5811866897 is an equidigital number, since it uses as much as digits as its factorization.

5811866897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 59.

The square root of 5811866897 is about 76235.6012437759. The cubic root of 5811866897 is about 1797.9263050184.

The spelling of 5811866897 in words is "five billion, eight hundred eleven million, eight hundred sixty-six thousand, eight hundred ninety-seven".