3813806736368 has 20 divisors (see below), whose sum is σ = 7400960952528. Its totient is φ = 1903881329280.

The previous prime is 3813806736367. The next prime is 3813806736373. The reversal of 3813806736368 is 8636376083183.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3813806736368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813806736367) 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, 188867021 + ... + 188887212.

Almost surely, 2^{3813806736368} is an apocalyptic number.

It is an amenable number.

3813806736368 is a deficient number, since it is larger than the sum of its proper divisors (3587154216160).

3813806736368 is a wasteful number, since it uses less digits than its factorization.

3813806736368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377754872 (or 377754866 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 62.

The spelling of 3813806736368 in words is "three trillion, eight hundred thirteen billion, eight hundred six million, seven hundred thirty-six thousand, three hundred sixty-eight".