208847072741 has 2 divisors, whose sum is σ = 208847072742. Its totient is φ = 208847072740.

The previous prime is 208847072737. The next prime is 208847072813. The reversal of 208847072741 is 147270748802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155903363716 + 52943709025 = 394846^2 + 230095^2 .

It is a cyclic number.

It is not a de Polignac number, because 208847072741 - 2² = 208847072737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208847072741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208847077741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104423536370 + 104423536371.

It is an arithmetic number, because the mean of its divisors is an integer number (104423536371).

Almost surely, 2^208847072741 is an apocalyptic number.

It is an amenable number.

208847072741 is a deficient number, since it is larger than the sum of its proper divisors (1).

208847072741 is an equidigital number, since it uses as much as digits as its factorization.

208847072741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1404928, while the sum is 50.

The spelling of 208847072741 in words is "two hundred eight billion, eight hundred forty-seven million, seventy-two thousand, seven hundred forty-one".