12705361228783 has 2 divisors, whose sum is σ = 12705361228784. Its totient is φ = 12705361228782.

The previous prime is 12705361228753. The next prime is 12705361228801. The reversal of 12705361228783 is 38782216350721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12705361228783 - 2⁴¹ = 10506337973231 is a prime.

It is a super-2 number, since 2×12705361228783² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12705361228733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6352680614391 + 6352680614392.

It is an arithmetic number, because the mean of its divisors is an integer number (6352680614392).

Almost surely, 2^{12705361228783} is an apocalyptic number.

12705361228783 is a deficient number, since it is larger than the sum of its proper divisors (1).

12705361228783 is an equidigital number, since it uses as much as digits as its factorization.

12705361228783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 12705361228783 in words is "twelve trillion, seven hundred five billion, three hundred sixty-one million, two hundred twenty-eight thousand, seven hundred eighty-three".