3813781143747 has 16 divisors (see below), whose sum is σ = 5106165592320. Its totient is φ = 2531974029600.

The previous prime is 3813781143737. The next prime is 3813781143761. The reversal of 3813781143747 is 7473411873183.

3813781143747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3813781143747 - 2³⁵ = 3779421405379 is a prime.

It is a super-2 number, since 2×3813781143747² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3813781143727) 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, 914529 + ... + 2909282.

It is an arithmetic number, because the mean of its divisors is an integer number (319135349520).

Almost surely, 2^{3813781143747} is an apocalyptic number.

3813781143747 is a deficient number, since it is larger than the sum of its proper divisors (1292384448573).

3813781143747 is a wasteful number, since it uses less digits than its factorization.

3813781143747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825194.

The product of its digits is 9483264, while the sum is 57.

The spelling of 3813781143747 in words is "three trillion, eight hundred thirteen billion, seven hundred eighty-one million, one hundred forty-three thousand, seven hundred forty-seven".