3681338899 has 16 divisors (see below), whose sum is σ = 4648416768. Its totient is φ = 2840694912.

The previous prime is 3681338897. The next prime is 3681338911. The reversal of 3681338899 is 9988331863.

It is a cyclic number.

It is not a de Polignac number, because 3681338899 - 2¹ = 3681338897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681338891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669777 + ... + 675250.

It is an arithmetic number, because the mean of its divisors is an integer number (290526048).

Almost surely, 2^3681338899 is an apocalyptic number.

3681338899 is a deficient number, since it is larger than the sum of its proper divisors (967077869).

3681338899 is a wasteful number, since it uses less digits than its factorization.

3681338899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345074.

The product of its digits is 6718464, while the sum is 58.

The square root of 3681338899 is about 60674.0380970313. The cubic root of 3681338899 is about 1544.0757414666.

The spelling of 3681338899 in words is "three billion, six hundred eighty-one million, three hundred thirty-eight thousand, eight hundred ninety-nine".