3813538864 has 20 divisors (see below), whose sum is σ = 7393549600. Its totient is φ = 1905526080.

The previous prime is 3813538853. The next prime is 3813538867. The reversal of 3813538864 is 4688353183.

It is not an unprimeable number, because it can be changed into a prime (3813538867) 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 3 ways as a sum of consecutive naturals, for example, 52152 + ... + 101719.

It is an arithmetic number, because the mean of its divisors is an integer number (369677480).

Almost surely, 2^3813538864 is an apocalyptic number.

It is an amenable number.

3813538864 is a deficient number, since it is larger than the sum of its proper divisors (3580010736).

3813538864 is a wasteful number, since it uses less digits than its factorization.

3813538864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155428 (or 155422 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 3813538864 is about 61753.8570779186. The cubic root of 3813538864 is about 1562.3418235527.

The spelling of 3813538864 in words is "three billion, eight hundred thirteen million, five hundred thirty-eight thousand, eight hundred sixty-four".