3813538863 has 16 divisors (see below), whose sum is σ = 5226562656. Its totient is φ = 2471861760.

The previous prime is 3813538853. The next prime is 3813538867. The reversal of 3813538863 is 3688353183.

It is a de Polignac number, because none of the positive numbers 2^k-3813538863 is a prime.

It is a super-2 number, since 2×3813538863² = 29086157319222665538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813538867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16870 + ... + 88947.

It is an arithmetic number, because the mean of its divisors is an integer number (326660166).

Almost surely, 2^3813538863 is an apocalyptic number.

3813538863 is a deficient number, since it is larger than the sum of its proper divisors (1413023793).

3813538863 is a wasteful number, since it uses less digits than its factorization.

3813538863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106154.

The product of its digits is 1244160, while the sum is 48.

The square root of 3813538863 is about 61753.8570698220. The cubic root of 3813538863 is about 1562.3418234161.

The spelling of 3813538863 in words is "three billion, eight hundred thirteen million, five hundred thirty-eight thousand, eight hundred sixty-three".