3636816013 has 4 divisors (see below), whose sum is σ = 3643796988. Its totient is φ = 3629835040.

The previous prime is 3636815999. The next prime is 3636816017. The reversal of 3636816013 is 3106186363.

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 2772338409 + 864477604 = 52653^2 + 29402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3636816013 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 (3636816017) 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, 3489706 + ... + 3490747.

It is an arithmetic number, because the mean of its divisors is an integer number (910949247).

Almost surely, 2^3636816013 is an apocalyptic number.

It is an amenable number.

3636816013 is a deficient number, since it is larger than the sum of its proper divisors (6980975).

3636816013 is an equidigital number, since it uses as much as digits as its factorization.

3636816013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980974.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 3636816013 is about 60306.0197078202. The cubic root of 3636816013 is about 1537.8256847066.

The spelling of 3636816013 in words is "three billion, six hundred thirty-six million, eight hundred sixteen thousand, thirteen".