3989139216208 has 10 divisors (see below), whose sum is σ = 7728957231434. Its totient is φ = 1994569608096.

The previous prime is 3989139216173. The next prime is 3989139216241. The reversal of 3989139216208 is 8026129319893.

3989139216208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3724930880064 + 264208336144 = 1930008^2 + 514012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124660600491 + ... + 124660600522.

Almost surely, 2^{3989139216208} is an apocalyptic number.

It is an amenable number.

3989139216208 is a deficient number, since it is larger than the sum of its proper divisors (3739818015226).

3989139216208 is a wasteful number, since it uses less digits than its factorization.

3989139216208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249321201021 (or 249321201015 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 3989139216208 in words is "three trillion, nine hundred eighty-nine billion, one hundred thirty-nine million, two hundred sixteen thousand, two hundred eight".