3866638063 has 8 divisors (see below), whose sum is σ = 4031470080. Its totient is φ = 3703906080.

The previous prime is 3866638043. The next prime is 3866638067. The reversal of 3866638063 is 3608366683.

3866638063 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3866638063 - 2¹⁷ = 3866506991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3866637998 and 3866638016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866638067) 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, 521248 + ... + 528613.

It is an arithmetic number, because the mean of its divisors is an integer number (503933760).

Almost surely, 2^3866638063 is an apocalyptic number.

3866638063 is a deficient number, since it is larger than the sum of its proper divisors (164832017).

3866638063 is a wasteful number, since it uses less digits than its factorization.

3866638063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050017.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The square root of 3866638063 is about 62182.2970225449. The cubic root of 3866638063 is about 1569.5597049246.

It can be divided in two parts, 38666 and 38063, that added together give a square (76729 = 277²).

The spelling of 3866638063 in words is "three billion, eight hundred sixty-six million, six hundred thirty-eight thousand, sixty-three".