68593223563 has 2 divisors, whose sum is σ = 68593223564. Its totient is φ = 68593223562.

The previous prime is 68593223549. The next prime is 68593223627. The reversal of 68593223563 is 36532239586.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68593223563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68593223563.

It is not a weakly prime, because it can be changed into another prime (68593223513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34296611781 + 34296611782.

It is an arithmetic number, because the mean of its divisors is an integer number (34296611782).

Almost surely, 2^68593223563 is an apocalyptic number.

68593223563 is a deficient number, since it is larger than the sum of its proper divisors (1).

68593223563 is an equidigital number, since it uses as much as digits as its factorization.

68593223563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 52.

The spelling of 68593223563 in words is "sixty-eight billion, five hundred ninety-three million, two hundred twenty-three thousand, five hundred sixty-three".