1283145680783 has 2 divisors, whose sum is σ = 1283145680784. Its totient is φ = 1283145680782.

The previous prime is 1283145680701. The next prime is 1283145680953. The reversal of 1283145680783 is 3870865413821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1283145680783 - 2³² = 1278850713487 is a prime.

It is a super-2 number, since 2×1283145680783² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283145680183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641572840391 + 641572840392.

It is an arithmetic number, because the mean of its divisors is an integer number (641572840392).

Almost surely, 2^{1283145680783} is an apocalyptic number.

1283145680783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283145680783 is an equidigital number, since it uses as much as digits as its factorization.

1283145680783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 1283145680783 in words is "one trillion, two hundred eighty-three billion, one hundred forty-five million, six hundred eighty thousand, seven hundred eighty-three".