4189018109 has 2 divisors, whose sum is σ = 4189018110. Its totient is φ = 4189018108.

The previous prime is 4189018069. The next prime is 4189018111. The reversal of 4189018109 is 9018109814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2425858009 + 1763160100 = 49253^2 + 41990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4189018109 is a prime.

Together with 4189018111, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4189048109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2094509054 + 2094509055.

It is an arithmetic number, because the mean of its divisors is an integer number (2094509055).

Almost surely, 2^4189018109 is an apocalyptic number.

It is an amenable number.

4189018109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4189018109 is an equidigital number, since it uses as much as digits as its factorization.

4189018109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 4189018109 is about 64722.6243982736. The cubic root of 4189018109 is about 1612.0211886386.

The spelling of 4189018109 in words is "four billion, one hundred eighty-nine million, eighteen thousand, one hundred nine".