281886560797 has 2 divisors, whose sum is σ = 281886560798. Its totient is φ = 281886560796.

The previous prime is 281886560743. The next prime is 281886560827. The reversal of 281886560797 is 797065688182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272472516121 + 9414044676 = 521989^2 + 97026^2 .

It is a cyclic number.

It is not a de Polignac number, because 281886560797 - 2²³ = 281878172189 is a prime.

It is a super-3 number, since 3×281886560797³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281886560707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140943280398 + 140943280399.

It is an arithmetic number, because the mean of its divisors is an integer number (140943280399).

Almost surely, 2^281886560797 is an apocalyptic number.

It is an amenable number.

281886560797 is a deficient number, since it is larger than the sum of its proper divisors (1).

281886560797 is an equidigital number, since it uses as much as digits as its factorization.

281886560797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81285120, while the sum is 67.

The spelling of 281886560797 in words is "two hundred eighty-one billion, eight hundred eighty-six million, five hundred sixty thousand, seven hundred ninety-seven".