5611111189 has 2 divisors, whose sum is σ = 5611111190. Its totient is φ = 5611111188.

The previous prime is 5611111159. The next prime is 5611111193. The reversal of 5611111189 is 9811111165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3900627025 + 1710484164 = 62455^2 + 41358^2 .

It is a cyclic number.

It is not a de Polignac number, because 5611111189 - 2⁷ = 5611111061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5611111159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805555594 + 2805555595.

It is an arithmetic number, because the mean of its divisors is an integer number (2805555595).

Almost surely, 2^5611111189 is an apocalyptic number.

It is an amenable number.

5611111189 is a deficient number, since it is larger than the sum of its proper divisors (1).

5611111189 is an equidigital number, since it uses as much as digits as its factorization.

5611111189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 34.

The square root of 5611111189 is about 74907.3507007156. The cubic root of 5611111189 is about 1776.9817119853.

The spelling of 5611111189 in words is "five billion, six hundred eleven million, one hundred eleven thousand, one hundred eighty-nine".