4089137989 has 8 divisors (see below), whose sum is σ = 4161888632. Its totient is φ = 4016571840.

The previous prime is 4089137981. The next prime is 4089138017. The reversal of 4089137989 is 9897319804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 388484100 + 3700653889 = 19710^2 + 60833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4089137989 - 2³ = 4089137981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089137981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014 + ... + 90439.

It is an arithmetic number, because the mean of its divisors is an integer number (520236079).

Almost surely, 2^4089137989 is an apocalyptic number.

It is an amenable number.

4089137989 is a deficient number, since it is larger than the sum of its proper divisors (72750643).

4089137989 is an equidigital number, since it uses as much as digits as its factorization.

4089137989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92247.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The square root of 4089137989 is about 63946.3680673109. The cubic root of 4089137989 is about 1599.1060095656.

The spelling of 4089137989 in words is "four billion, eighty-nine million, one hundred thirty-seven thousand, nine hundred eighty-nine".