3988821842368 has 224 divisors, whose sum is σ = 8790397862400. Its totient is φ = 1780812288000.

The previous prime is 3988821842287. The next prime is 3988821842377. The reversal of 3988821842368 is 8632481288893.

It is a junction number, because it is equal to n+sod(n) for n = 3988821842297 and 3988821842306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7836584898 + ... + 7836585406.

It is an arithmetic number, because the mean of its divisors is an integer number (39242847600).

Almost surely, 2^{3988821842368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3988821842368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4395198931200).

3988821842368 is an abundant number, since it is smaller than the sum of its proper divisors (4801576020032).

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

3988821842368 is a wasteful number, since it uses less digits than its factorization.

3988821842368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1289 counting only the distinct ones).

The product of its digits is 254803968, while the sum is 70.

The spelling of 3988821842368 in words is "three trillion, nine hundred eighty-eight billion, eight hundred twenty-one million, eight hundred forty-two thousand, three hundred sixty-eight".