3868647612 has 12 divisors (see below), whose sum is σ = 9026844456. Its totient is φ = 1289549200.

The previous prime is 3868647611. The next prime is 3868647623. The reversal of 3868647612 is 2167468683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868647611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161193639 + ... + 161193662.

It is an arithmetic number, because the mean of its divisors is an integer number (752237038).

Almost surely, 2^3868647612 is an apocalyptic number.

It is an amenable number.

3868647612 is an abundant number, since it is smaller than the sum of its proper divisors (5158196844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3868647612 is a wasteful number, since it uses less digits than its factorization.

3868647612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322387308 (or 322387306 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 3868647612 is about 62198.4534534421. The cubic root of 3868647612 is about 1569.8315656323.

The spelling of 3868647612 in words is "three billion, eight hundred sixty-eight million, six hundred forty-seven thousand, six hundred twelve".