2986816109 has 4 divisors (see below), whose sum is σ = 3004081116. Its totient is φ = 2969551104.

The previous prime is 2986816081. The next prime is 2986816181. The reversal of 2986816109 is 9016186892.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2886375625 + 100440484 = 53725^2 + 10022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2986816109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2986816709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8632244 + ... + 8632589.

It is an arithmetic number, because the mean of its divisors is an integer number (751020279).

Almost surely, 2^2986816109 is an apocalyptic number.

It is an amenable number.

2986816109 is a deficient number, since it is larger than the sum of its proper divisors (17265007).

2986816109 is a wasteful number, since it uses less digits than its factorization.

2986816109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17265006.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 2986816109 is about 54651.7713253651. The cubic root of 2986816109 is about 1440.1337499545.

The spelling of 2986816109 in words is "two billion, nine hundred eighty-six million, eight hundred sixteen thousand, one hundred nine".