3866475418 has 16 divisors (see below), whose sum is σ = 6257855016. Its totient is φ = 1781095680.

The previous prime is 3866475413. The next prime is 3866475449. The reversal of 3866475418 is 8145746683.

It can be written as a sum of positive squares in 4 ways, for example, as 949071249 + 2917404169 = 30807^2 + 54013^2 .

It is not an unprimeable number, because it can be changed into a prime (3866475413) 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, 129171 + ... + 156262.

Almost surely, 2^3866475418 is an apocalyptic number.

3866475418 is a deficient number, since it is larger than the sum of its proper divisors (2391379598).

3866475418 is a wasteful number, since it uses less digits than its factorization.

3866475418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285969.

The product of its digits is 3870720, while the sum is 52.

The square root of 3866475418 is about 62180.9892008804. The cubic root of 3866475418 is about 1569.5376974672.

The spelling of 3866475418 in words is "three billion, eight hundred sixty-six million, four hundred seventy-five thousand, four hundred eighteen".