3813263138863 has 4 divisors (see below), whose sum is σ = 3813547278888. Its totient is φ = 3812978998840.

The previous prime is 3813263138857. The next prime is 3813263138897. The reversal of 3813263138863 is 3688313623183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3813263138863 - 2²⁵ = 3813229584431 is a prime.

It is a super-2 number, since 2×3813263138863² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813263138813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142049881 + ... + 142076722.

It is an arithmetic number, because the mean of its divisors is an integer number (953386819722).

Almost surely, 2^{3813263138863} is an apocalyptic number.

3813263138863 is a deficient number, since it is larger than the sum of its proper divisors (284140025).

3813263138863 is a wasteful number, since it uses less digits than its factorization.

3813263138863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284140024.

The product of its digits is 8957952, while the sum is 55.

The spelling of 3813263138863 in words is "three trillion, eight hundred thirteen billion, two hundred sixty-three million, one hundred thirty-eight thousand, eight hundred sixty-three".