3888864688884 has 48 divisors (see below), whose sum is σ = 10370434128768. Its totient is φ = 1111090451328.

The previous prime is 3888864688873. The next prime is 3888864688901. The reversal of 3888864688884 is 4888864688883.

It is a super-2 number, since 2×3888864688884² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3888864688884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7943682 + ... + 8419014.

It is an arithmetic number, because the mean of its divisors is an integer number (216050711016).

Almost surely, 2^{3888864688884} is an apocalyptic number.

It is an amenable number.

3888864688884 is an abundant number, since it is smaller than the sum of its proper divisors (6481569439884).

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

3888864688884 is a wasteful number, since it uses less digits than its factorization.

3888864688884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572744 (or 572742 counting only the distinct ones).

The product of its digits is 28991029248, while the sum is 87.

Subtracting 3888864688884 from its reverse (4888864688883), we obtain a palindrome (999999999999).

The spelling of 3888864688884 in words is "three trillion, eight hundred eighty-eight billion, eight hundred sixty-four million, six hundred eighty-eight thousand, eight hundred eighty-four".