4389109609 has 2 divisors, whose sum is σ = 4389109610. Its totient is φ = 4389109608.

The previous prime is 4389109577. The next prime is 4389109643. The reversal of 4389109609 is 9069019834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3141042025 + 1248067584 = 56045^2 + 35328^2 .

It is a cyclic number.

It is not a de Polignac number, because 4389109609 - 2⁵ = 4389109577 is a prime.

It is a super-2 number, since 2×4389109609² = 38528566319632265762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4389104609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194554804 + 2194554805.

It is an arithmetic number, because the mean of its divisors is an integer number (2194554805).

Almost surely, 2^4389109609 is an apocalyptic number.

It is an amenable number.

4389109609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4389109609 is an equidigital number, since it uses as much as digits as its factorization.

4389109609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 4389109609 is about 66250.3555386686. The cubic root of 4389109609 is about 1637.2894956488.

The spelling of 4389109609 in words is "four billion, three hundred eighty-nine million, one hundred nine thousand, six hundred nine".