208981046243 has 2 divisors, whose sum is σ = 208981046244. Its totient is φ = 208981046242.

The previous prime is 208981046179. The next prime is 208981046299. The reversal of 208981046243 is 342640189802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208981046243 - 2⁶ = 208981046179 is a prime.

It is not a weakly prime, because it can be changed into another prime (208981046543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104490523121 + 104490523122.

It is an arithmetic number, because the mean of its divisors is an integer number (104490523122).

Almost surely, 2^208981046243 is an apocalyptic number.

208981046243 is a deficient number, since it is larger than the sum of its proper divisors (1).

208981046243 is an equidigital number, since it uses as much as digits as its factorization.

208981046243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 208981046243 in words is "two hundred eight billion, nine hundred eighty-one million, forty-six thousand, two hundred forty-three".