1298063063873 has 2 divisors, whose sum is σ = 1298063063874. Its totient is φ = 1298063063872.

The previous prime is 1298063063839. The next prime is 1298063063881. The reversal of 1298063063873 is 3783603608921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1281759093904 + 16303969969 = 1132148^2 + 127687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298063063873 - 2¹⁸ = 1298062801729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1298063063893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649031531936 + 649031531937.

It is an arithmetic number, because the mean of its divisors is an integer number (649031531937).

Almost surely, 2^{1298063063873} is an apocalyptic number.

It is an amenable number.

1298063063873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298063063873 is an equidigital number, since it uses as much as digits as its factorization.

1298063063873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 1298063063873 in words is "one trillion, two hundred ninety-eight billion, sixty-three million, sixty-three thousand, eight hundred seventy-three".