4409381789 has 2 divisors, whose sum is σ = 4409381790. Its totient is φ = 4409381788.

The previous prime is 4409381759. The next prime is 4409381791. The reversal of 4409381789 is 9871839044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4408296025 + 1085764 = 66395^2 + 1042^2 .

It is a cyclic number.

It is not a de Polignac number, because 4409381789 - 2²⁸ = 4140946333 is a prime.

It is a super-2 number, since 2×4409381789² = 38885295522329681042, which contains 22 as substring.

Together with 4409381791, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4409381789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4409381759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204690894 + 2204690895.

It is an arithmetic number, because the mean of its divisors is an integer number (2204690895).

Almost surely, 2^4409381789 is an apocalyptic number.

It is an amenable number.

4409381789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4409381789 is an equidigital number, since it uses as much as digits as its factorization.

4409381789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 4409381789 is about 66403.1760460296. The cubic root of 4409381789 is about 1639.8063658209.

The spelling of 4409381789 in words is "four billion, four hundred nine million, three hundred eighty-one thousand, seven hundred eighty-nine".