281479267484617 has 2 divisors, whose sum is σ = 281479267484618. Its totient is φ = 281479267484616.

The previous prime is 281479267484603. The next prime is 281479267484647. The reversal of 281479267484617 is 716484762974182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192518511010816 + 88960756473801 = 13875104^2 + 9431901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281479267484617 is a prime.

It is not a weakly prime, because it can be changed into another prime (281479267484647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140739633742308 + 140739633742309.

It is an arithmetic number, because the mean of its divisors is an integer number (140739633742309).

Almost surely, 2^{281479267484617} is an apocalyptic number.

It is an amenable number.

281479267484617 is a deficient number, since it is larger than the sum of its proper divisors (1).

281479267484617 is an equidigital number, since it uses as much as digits as its factorization.

281479267484617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1820786688, while the sum is 76.

The spelling of 281479267484617 in words is "two hundred eighty-one trillion, four hundred seventy-nine billion, two hundred sixty-seven million, four hundred eighty-four thousand, six hundred seventeen".