281479271628013 has 2 divisors, whose sum is σ = 281479271628014. Its totient is φ = 281479271628012.

The previous prime is 281479271628007. The next prime is 281479271628073. The reversal of 281479271628013 is 310826172974182.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219492906675849 + 61986364952164 = 14815293^2 + 7873142^2 .

It is a cyclic number.

It is not a de Polignac number, because 281479271628013 - 2⁹ = 281479271627501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281479271628073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140739635814006 + 140739635814007.

It is an arithmetic number, because the mean of its divisors is an integer number (140739635814007).

Almost surely, 2^{281479271628013} is an apocalyptic number.

It is an amenable number.

281479271628013 is a deficient number, since it is larger than the sum of its proper divisors (1).

281479271628013 is an equidigital number, since it uses as much as digits as its factorization.

281479271628013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 281479271628013 in words is "two hundred eighty-one trillion, four hundred seventy-nine billion, two hundred seventy-one million, six hundred twenty-eight thousand, thirteen".