4069989509 has 2 divisors, whose sum is σ = 4069989510. Its totient is φ = 4069989508.

The previous prime is 4069989503. The next prime is 4069989557. The reversal of 4069989509 is 9059899604.

4069989509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4067633284 + 2356225 = 63778^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 4069989509 - 2¹⁶ = 4069923973 is a prime.

It is a super-2 number, since 2×4069989509² = 33129629206740122162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4069989503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2034994754 + 2034994755.

It is an arithmetic number, because the mean of its divisors is an integer number (2034994755).

Almost surely, 2^4069989509 is an apocalyptic number.

It is an amenable number.

4069989509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4069989509 is an equidigital number, since it uses as much as digits as its factorization.

4069989509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6298560, while the sum is 59.

The square root of 4069989509 is about 63796.4694085809. The cubic root of 4069989509 is about 1596.6060229833.

The spelling of 4069989509 in words is "four billion, sixty-nine million, nine hundred eighty-nine thousand, five hundred nine".