208706886849 has 8 divisors (see below), whose sum is σ = 294645016800. Its totient is φ = 130953340736.

The previous prime is 208706886847. The next prime is 208706886853. The reversal of 208706886849 is 948688607802.

It is a happy number.

208706886849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208706886849 - 2¹ = 208706886847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208706886849.

It is not an unprimeable number, because it can be changed into a prime (208706886847) 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 7 ways as a sum of consecutive naturals, for example, 2046145899 + ... + 2046146000.

It is an arithmetic number, because the mean of its divisors is an integer number (36830627100).

Almost surely, 2^208706886849 is an apocalyptic number.

It is an amenable number.

208706886849 is a deficient number, since it is larger than the sum of its proper divisors (85938129951).

208706886849 is a wasteful number, since it uses less digits than its factorization.

208706886849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092291919.

The product of its (nonzero) digits is 74317824, while the sum is 66.

The spelling of 208706886849 in words is "two hundred eight billion, seven hundred six million, eight hundred eighty-six thousand, eight hundred forty-nine".