3988942798828 has 48 divisors (see below), whose sum is σ = 7773785641440. Its totient is φ = 1779353731584.

The previous prime is 3988942798793. The next prime is 3988942798829. The reversal of 3988942798828 is 8288972498893.

It is not an unprimeable number, because it can be changed into a prime (3988942798829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10616593 + ... + 10985896.

It is an arithmetic number, because the mean of its divisors is an integer number (161953867530).

Almost surely, 2^{3988942798828} is an apocalyptic number.

It is an amenable number.

3988942798828 is a deficient number, since it is larger than the sum of its proper divisors (3784842842612).

3988942798828 is a wasteful number, since it uses less digits than its factorization.

3988942798828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21602626 (or 21602624 counting only the distinct ones).

The product of its digits is 8026324992, while the sum is 85.

The spelling of 3988942798828 in words is "three trillion, nine hundred eighty-eight billion, nine hundred forty-two million, seven hundred ninety-eight thousand, eight hundred twenty-eight".