281982232673 has 2 divisors, whose sum is σ = 281982232674. Its totient is φ = 281982232672.

The previous prime is 281982232661. The next prime is 281982232699. The reversal of 281982232673 is 376232289182.

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., 235387988224 + 46594244449 = 485168^2 + 215857^2 .

It is a cyclic number.

It is not a de Polignac number, because 281982232673 - 2²² = 281978038369 is a prime.

It is not a weakly prime, because it can be changed into another prime (281982262673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140991116336 + 140991116337.

It is an arithmetic number, because the mean of its divisors is an integer number (140991116337).

Almost surely, 2^281982232673 is an apocalyptic number.

It is an amenable number.

281982232673 is a deficient number, since it is larger than the sum of its proper divisors (1).

281982232673 is an equidigital number, since it uses as much as digits as its factorization.

281982232673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 53.

The spelling of 281982232673 in words is "two hundred eighty-one billion, nine hundred eighty-two million, two hundred thirty-two thousand, six hundred seventy-three".