208743280712 has 36 divisors (see below), whose sum is σ = 394207357635. Its totient is φ = 103626650160.

The previous prime is 208743280643. The next prime is 208743280723. The reversal of 208743280712 is 217082347802.

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.

It can be written as a sum of positive squares in only one way, i.e., 104371640356 + 104371640356 = 323066^2 + 323066^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=323066.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 210638537 + ... + 210639527.

Almost surely, 2^208743280712 is an apocalyptic number.

It is an amenable number.

208743280712 is a deficient number, since it is larger than the sum of its proper divisors (185464076923).

208743280712 is an frugal number, since it uses more digits than its factorization.

208743280712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 208743280712 in words is "two hundred eight billion, seven hundred forty-three million, two hundred eighty thousand, seven hundred twelve".