1563468883121 has 2 divisors, whose sum is σ = 1563468883122. Its totient is φ = 1563468883120.

The previous prime is 1563468883091. The next prime is 1563468883139. The reversal of 1563468883121 is 1213888643651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1135000452496 + 428468430625 = 1065364^2 + 654575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1563468883121 - 2³⁴ = 1546289013937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1563468883181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781734441560 + 781734441561.

It is an arithmetic number, because the mean of its divisors is an integer number (781734441561).

Almost surely, 2^{1563468883121} is an apocalyptic number.

It is an amenable number.

1563468883121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563468883121 is an equidigital number, since it uses as much as digits as its factorization.

1563468883121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 56.

The spelling of 1563468883121 in words is "one trillion, five hundred sixty-three billion, four hundred sixty-eight million, eight hundred eighty-three thousand, one hundred twenty-one".