3781522966 has 16 divisors (see below), whose sum is σ = 6374206944. Its totient is φ = 1669434624.

The previous prime is 3781522963. The next prime is 3781522967. The reversal of 3781522966 is 6692251873.

3781522966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781522961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3161211 + ... + 3162406.

It is an arithmetic number, because the mean of its divisors is an integer number (398387934).

Almost surely, 2^3781522966 is an apocalyptic number.

3781522966 is a deficient number, since it is larger than the sum of its proper divisors (2592683978).

3781522966 is a wasteful number, since it uses less digits than its factorization.

3781522966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6323655.

The product of its digits is 1088640, while the sum is 49.

The square root of 3781522966 is about 61494.0888703947. The cubic root of 3781522966 is about 1557.9574086020.

The spelling of 3781522966 in words is "three billion, seven hundred eighty-one million, five hundred twenty-two thousand, nine hundred sixty-six".