281982756901 has 2 divisors, whose sum is σ = 281982756902. Its totient is φ = 281982756900.

The previous prime is 281982756871. The next prime is 281982756961. The reversal of 281982756901 is 109657289182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240493140801 + 41489616100 = 490401^2 + 203690^2 .

It is a cyclic number.

It is not a de Polignac number, because 281982756901 - 2¹¹ = 281982754853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281982756961) 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, 140991378450 + 140991378451.

It is an arithmetic number, because the mean of its divisors is an integer number (140991378451).

Almost surely, 2^281982756901 is an apocalyptic number.

It is an amenable number.

281982756901 is a deficient number, since it is larger than the sum of its proper divisors (1).

281982756901 is an equidigital number, since it uses as much as digits as its factorization.

281982756901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 281982756901 in words is "two hundred eighty-one billion, nine hundred eighty-two million, seven hundred fifty-six thousand, nine hundred one".