563121934909 has 2 divisors, whose sum is σ = 563121934910. Its totient is φ = 563121934908.

The previous prime is 563121934829. The next prime is 563121934939. The reversal of 563121934909 is 909439121365.

563121934909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476406409284 + 86715525625 = 690222^2 + 294475^2 .

It is a cyclic number.

It is not a de Polignac number, because 563121934909 - 2²⁷ = 562987717181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563121934939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281560967454 + 281560967455.

It is an arithmetic number, because the mean of its divisors is an integer number (281560967455).

Almost surely, 2^563121934909 is an apocalyptic number.

It is an amenable number.

563121934909 is a deficient number, since it is larger than the sum of its proper divisors (1).

563121934909 is an equidigital number, since it uses as much as digits as its factorization.

563121934909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 563121934909 in words is "five hundred sixty-three billion, one hundred twenty-one million, nine hundred thirty-four thousand, nine hundred nine".