208794568943 has 4 divisors (see below), whose sum is σ = 209386055328. Its totient is φ = 208203082560.

The previous prime is 208794568849. The next prime is 208794568981. The reversal of 208794568943 is 349865497802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 208794568943 - 2¹⁴ = 208794552559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 208794568943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208794568043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295742663 + ... + 295743368.

It is an arithmetic number, because the mean of its divisors is an integer number (52346513832).

Almost surely, 2^208794568943 is an apocalyptic number.

208794568943 is a deficient number, since it is larger than the sum of its proper divisors (591486385).

208794568943 is an equidigital number, since it uses as much as digits as its factorization.

208794568943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591486384.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 208794568943 in words is "two hundred eight billion, seven hundred ninety-four million, five hundred sixty-eight thousand, nine hundred forty-three".