208494799211 has 2 divisors, whose sum is σ = 208494799212. Its totient is φ = 208494799210.

The previous prime is 208494799193. The next prime is 208494799213. The reversal of 208494799211 is 112997494802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208494799211 - 2²⁶ = 208427690347 is a prime.

Together with 208494799213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (208494799213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104247399605 + 104247399606.

It is an arithmetic number, because the mean of its divisors is an integer number (104247399606).

Almost surely, 2^208494799211 is an apocalyptic number.

208494799211 is a deficient number, since it is larger than the sum of its proper divisors (1).

208494799211 is an equidigital number, since it uses as much as digits as its factorization.

208494799211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 208494799211 in words is "two hundred eight billion, four hundred ninety-four million, seven hundred ninety-nine thousand, two hundred eleven".