9808039856212 has 24 divisors (see below), whose sum is σ = 18983960723336. Its totient is φ = 4404442013568.

The previous prime is 9808039856179. The next prime is 9808039856221. The reversal of 9808039856212 is 2126589308089.

9808039856212 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 4 ways, for example, as 648240757956 + 9159799098256 = 805134^2 + 3026516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548864983 + ... + 2548868830.

Almost surely, 2^{9808039856212} is an apocalyptic number.

It is an amenable number.

9808039856212 is a deficient number, since it is larger than the sum of its proper divisors (9175920867124).

9808039856212 is a wasteful number, since it uses less digits than its factorization.

9808039856212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097733867 (or 5097733865 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 9808039856212 in words is "nine trillion, eight hundred eight billion, thirty-nine million, eight hundred fifty-six thousand, two hundred twelve".