3868859506 has 4 divisors (see below), whose sum is σ = 5803289262. Its totient is φ = 1934429752.

The previous prime is 3868859503. The next prime is 3868859513. The reversal of 3868859506 is 6059588683.

It is a happy number.

3868859506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3864487225 + 4372281 = 62165^2 + 2091^2 .

It is not an unprimeable number, because it can be changed into a prime (3868859503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967214875 + ... + 967214878.

Almost surely, 2^3868859506 is an apocalyptic number.

3868859506 is a deficient number, since it is larger than the sum of its proper divisors (1934429756).

3868859506 is a wasteful number, since it uses less digits than its factorization.

3868859506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934429755.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The square root of 3868859506 is about 62200.1568004454. The cubic root of 3868859506 is about 1569.8602261058.

The spelling of 3868859506 in words is "three billion, eight hundred sixty-eight million, eight hundred fifty-nine thousand, five hundred six".