208944922568 has 12 divisors (see below), whose sum is σ = 391774153995. Its totient is φ = 104471814840.

The previous prime is 208944922561. The next prime is 208944922577. The reversal of 208944922568 is 865229449802.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

208944922568 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., 104472461284 + 104472461284 = 323222^2 + 323222^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=323222.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208944922561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1212083 + ... + 1373693.

Almost surely, 2^208944922568 is an apocalyptic number.

It is an amenable number.

208944922568 is a deficient number, since it is larger than the sum of its proper divisors (182829231427).

208944922568 is an frugal number, since it uses more digits than its factorization.

208944922568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323228 (or 161613 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 208944922568 in words is "two hundred eight billion, nine hundred forty-four million, nine hundred twenty-two thousand, five hundred sixty-eight".