3866049187 has 96 divisors (see below), whose sum is σ = 5653670400. Its totient is φ = 2590963200.

The previous prime is 3866049167. The next prime is 3866049221. The reversal of 3866049187 is 7819406683.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-3866049187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3866049107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9452239 + ... + 9452647.

It is an arithmetic number, because the mean of its divisors is an integer number (58892400).

Almost surely, 2^3866049187 is an apocalyptic number.

3866049187 is a deficient number, since it is larger than the sum of its proper divisors (1787621213).

3866049187 is a wasteful number, since it uses less digits than its factorization.

3866049187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 3866049187 is about 62177.5617646752. The cubic root of 3866049187 is about 1569.4800213208.

The spelling of 3866049187 in words is "three billion, eight hundred sixty-six million, forty-nine thousand, one hundred eighty-seven".