281784483518243 has 2 divisors, whose sum is σ = 281784483518244. Its totient is φ = 281784483518242.

The previous prime is 281784483518233. The next prime is 281784483518249. The reversal of 281784483518243 is 342815384487182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281784483518243 - 2⁶ = 281784483518179 is a prime.

It is not a weakly prime, because it can be changed into another prime (281784483518249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140892241759121 + 140892241759122.

It is an arithmetic number, because the mean of its divisors is an integer number (140892241759122).

Almost surely, 2^{281784483518243} is an apocalyptic number.

281784483518243 is a deficient number, since it is larger than the sum of its proper divisors (1).

281784483518243 is an equidigital number, since it uses as much as digits as its factorization.

281784483518243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 330301440, while the sum is 68.

The spelling of 281784483518243 in words is "two hundred eighty-one trillion, seven hundred eighty-four billion, four hundred eighty-three million, five hundred eighteen thousand, two hundred forty-three".