208041788849 has 2 divisors, whose sum is σ = 208041788850. Its totient is φ = 208041788848.

The previous prime is 208041788839. The next prime is 208041788897. The reversal of 208041788849 is 948887140802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189349430449 + 18692358400 = 435143^2 + 136720^2 .

It is a cyclic number.

It is not a de Polignac number, because 208041788849 - 2⁸ = 208041788593 is a prime.

It is not a weakly prime, because it can be changed into another prime (208041788809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104020894424 + 104020894425.

It is an arithmetic number, because the mean of its divisors is an integer number (104020894425).

Almost surely, 2^208041788849 is an apocalyptic number.

It is an amenable number.

208041788849 is a deficient number, since it is larger than the sum of its proper divisors (1).

208041788849 is an equidigital number, since it uses as much as digits as its factorization.

208041788849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8257536, while the sum is 59.

The spelling of 208041788849 in words is "two hundred eight billion, forty-one million, seven hundred eighty-eight thousand, eight hundred forty-nine".