3813805244878 has 16 divisors (see below), whose sum is σ = 5833901698560. Its totient is φ = 1869236233696.

The previous prime is 3813805244863. The next prime is 3813805244929. The reversal of 3813805244878 is 8784425083183.

It is a super-2 number, since 2×3813805244878² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16103950 + ... + 16339057.

It is an arithmetic number, because the mean of its divisors is an integer number (364618856160).

Almost surely, 2^{3813805244878} is an apocalyptic number.

3813805244878 is a deficient number, since it is larger than the sum of its proper divisors (2020096453682).

3813805244878 is a wasteful number, since it uses less digits than its factorization.

3813805244878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32444171.

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 3813805244878 in words is "three trillion, eight hundred thirteen billion, eight hundred five million, two hundred forty-four thousand, eight hundred seventy-eight".