3649668911 has 12 divisors (see below), whose sum is σ = 4430122992. Its totient is φ = 2992274208.

The previous prime is 3649668901. The next prime is 3649668947. The reversal of 3649668911 is 1198669463.

It is not a de Polignac number, because 3649668911 - 2¹⁸ = 3649406767 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 (3649668901) 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 11 ways as a sum of consecutive naturals, for example, 1618070 + ... + 1620323.

It is an arithmetic number, because the mean of its divisors is an integer number (369176916).

Almost surely, 2^3649668911 is an apocalyptic number.

3649668911 is a deficient number, since it is larger than the sum of its proper divisors (780454081).

3649668911 is a wasteful number, since it uses less digits than its factorization.

3649668911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238430 (or 3238423 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 3649668911 is about 60412.4896937711. The cubic root of 3649668911 is about 1539.6351683978.

The spelling of 3649668911 in words is "three billion, six hundred forty-nine million, six hundred sixty-eight thousand, nine hundred eleven".