208594746361 has 2 divisors, whose sum is σ = 208594746362. Its totient is φ = 208594746360.

The previous prime is 208594746337. The next prime is 208594746379. The reversal of 208594746361 is 163647495802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185282037136 + 23312709225 = 430444^2 + 152685^2 .

It is a cyclic number.

It is not a de Polignac number, because 208594746361 - 2¹¹ = 208594744313 is a prime.

It is not a weakly prime, because it can be changed into another prime (208594746301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104297373180 + 104297373181.

It is an arithmetic number, because the mean of its divisors is an integer number (104297373181).

It is a 1-persistent number, because it is pandigital, but 2⋅208594746361 = 417189492722 is not.

Almost surely, 2^208594746361 is an apocalyptic number.

It is an amenable number.

208594746361 is a deficient number, since it is larger than the sum of its proper divisors (1).

208594746361 is an equidigital number, since it uses as much as digits as its factorization.

208594746361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 208594746361 in words is "two hundred eight billion, five hundred ninety-four million, seven hundred forty-six thousand, three hundred sixty-one".