563879434861 has 2 divisors, whose sum is σ = 563879434862. Its totient is φ = 563879434860.

The previous prime is 563879434837. The next prime is 563879434901. The reversal of 563879434861 is 168434978365.

563879434861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534112488900 + 29766945961 = 730830^2 + 172531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563879434861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 563879434793 and 563879434802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563879434561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281939717430 + 281939717431.

It is an arithmetic number, because the mean of its divisors is an integer number (281939717431).

Almost surely, 2^563879434861 is an apocalyptic number.

It is an amenable number.

563879434861 is a deficient number, since it is larger than the sum of its proper divisors (1).

563879434861 is an equidigital number, since it uses as much as digits as its factorization.

563879434861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104509440, while the sum is 64.

The spelling of 563879434861 in words is "five hundred sixty-three billion, eight hundred seventy-nine million, four hundred thirty-four thousand, eight hundred sixty-one".