3781868323 has 4 divisors (see below), whose sum is σ = 3785740200. Its totient is φ = 3777996448.

The previous prime is 3781868287. The next prime is 3781868381. The reversal of 3781868323 is 3238681873.

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 3781868323 - 2⁹ = 3781867811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3781868023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934473 + ... + 1936426.

It is an arithmetic number, because the mean of its divisors is an integer number (946435050).

Almost surely, 2^3781868323 is an apocalyptic number.

3781868323 is a deficient number, since it is larger than the sum of its proper divisors (3871877).

3781868323 is an equidigital number, since it uses as much as digits as its factorization.

3781868323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871876.

The product of its digits is 1161216, while the sum is 49.

The square root of 3781868323 is about 61496.8968566707. The cubic root of 3781868323 is about 1558.0048352713.

The spelling of 3781868323 in words is "three billion, seven hundred eighty-one million, eight hundred sixty-eight thousand, three hundred twenty-three".