281083425457 has 2 divisors, whose sum is σ = 281083425458. Its totient is φ = 281083425456.

The previous prime is 281083425449. The next prime is 281083425517. The reversal of 281083425457 is 754524380182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278698470561 + 2384954896 = 527919^2 + 48836^2 .

It is a cyclic number.

It is not a de Polignac number, because 281083425457 - 2³ = 281083425449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 281083425457.

It is not a weakly prime, because it can be changed into another prime (281083425437) 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, 140541712728 + 140541712729.

It is an arithmetic number, because the mean of its divisors is an integer number (140541712729).

Almost surely, 2^281083425457 is an apocalyptic number.

It is an amenable number.

281083425457 is a deficient number, since it is larger than the sum of its proper divisors (1).

281083425457 is an equidigital number, since it uses as much as digits as its factorization.

281083425457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 281083425457 in words is "two hundred eighty-one billion, eighty-three million, four hundred twenty-five thousand, four hundred fifty-seven".