208408614611 has 2 divisors, whose sum is σ = 208408614612. Its totient is φ = 208408614610.

The previous prime is 208408614593. The next prime is 208408614613. The reversal of 208408614611 is 116416804802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208408614611 is a prime.

Together with 208408614613, 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 (208408614613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104204307305 + 104204307306.

It is an arithmetic number, because the mean of its divisors is an integer number (104204307306).

Almost surely, 2^208408614611 is an apocalyptic number.

208408614611 is a deficient number, since it is larger than the sum of its proper divisors (1).

208408614611 is an equidigital number, since it uses as much as digits as its factorization.

208408614611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 208408614611 in words is "two hundred eight billion, four hundred eight million, six hundred fourteen thousand, six hundred eleven".