208748020279 has 2 divisors, whose sum is σ = 208748020280. Its totient is φ = 208748020278.

The previous prime is 208748020259. The next prime is 208748020297. The reversal of 208748020279 is 972020847802.

Together with next prime (208748020297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208748020279 - 2³⁵ = 174388281911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208748020259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104374010139 + 104374010140.

It is an arithmetic number, because the mean of its divisors is an integer number (104374010140).

Almost surely, 2^208748020279 is an apocalyptic number.

208748020279 is a deficient number, since it is larger than the sum of its proper divisors (1).

208748020279 is an equidigital number, since it uses as much as digits as its factorization.

208748020279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 208748020279 in words is "two hundred eight billion, seven hundred forty-eight million, twenty thousand, two hundred seventy-nine".