5589191891 has 2 divisors, whose sum is σ = 5589191892. Its totient is φ = 5589191890.

The previous prime is 5589191887. The next prime is 5589191911. The reversal of 5589191891 is 1981919855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5589191891 - 2² = 5589191887 is a prime.

It is not a weakly prime, because it can be changed into another prime (5589191821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2794595945 + 2794595946.

It is an arithmetic number, because the mean of its divisors is an integer number (2794595946).

Almost surely, 2^5589191891 is an apocalyptic number.

5589191891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5589191891 is an equidigital number, since it uses as much as digits as its factorization.

5589191891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 56.

The square root of 5589191891 is about 74760.8981420100. The cubic root of 5589191891 is about 1774.6648197100.

The spelling of 5589191891 in words is "five billion, five hundred eighty-nine million, one hundred ninety-one thousand, eight hundred ninety-one".