1282065083681 has 2 divisors, whose sum is σ = 1282065083682. Its totient is φ = 1282065083680.

The previous prime is 1282065083671. The next prime is 1282065083723. The reversal of 1282065083681 is 1863805602821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1025846891281 + 256218192400 = 1012841^2 + 506180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282065083681 - 2⁶ = 1282065083617 is a prime.

It is a super-2 number, since 2×1282065083681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1282065083671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641032541840 + 641032541841.

It is an arithmetic number, because the mean of its divisors is an integer number (641032541841).

Almost surely, 2^{1282065083681} is an apocalyptic number.

It is an amenable number.

1282065083681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282065083681 is an equidigital number, since it uses as much as digits as its factorization.

1282065083681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 1282065083681 in words is "one trillion, two hundred eighty-two billion, sixty-five million, eighty-three thousand, six hundred eighty-one".