3838747216668 has 216 divisors, whose sum is σ = 11946295014192. Its totient is φ = 952862496768.

The previous prime is 3838747216663. The next prime is 3838747216669. The reversal of 3838747216668 is 8666127478383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838747216663) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 553146 + ... + 2825502.

It is an arithmetic number, because the mean of its divisors is an integer number (55306921362).

Almost surely, 2^{3838747216668} 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 3838747216668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5973147507096).

3838747216668 is an abundant number, since it is smaller than the sum of its proper divisors (8107547797524).

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

3838747216668 is a wasteful number, since it uses less digits than its factorization.

3838747216668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272421 (or 2272399 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 69.

The spelling of 3838747216668 in words is "three trillion, eight hundred thirty-eight billion, seven hundred forty-seven million, two hundred sixteen thousand, six hundred sixty-eight".