68553446263 has 2 divisors, whose sum is σ = 68553446264. Its totient is φ = 68553446262.

The previous prime is 68553446251. The next prime is 68553446267. The reversal of 68553446263 is 36264435586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68553446263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68553446263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68553446267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34276723131 + 34276723132.

It is an arithmetic number, because the mean of its divisors is an integer number (34276723132).

Almost surely, 2^68553446263 is an apocalyptic number.

68553446263 is a deficient number, since it is larger than the sum of its proper divisors (1).

68553446263 is an equidigital number, since it uses as much as digits as its factorization.

68553446263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12441600, while the sum is 52.

The spelling of 68553446263 in words is "sixty-eight billion, five hundred fifty-three million, four hundred forty-six thousand, two hundred sixty-three".