28068973536193 has 2 divisors, whose sum is σ = 28068973536194. Its totient is φ = 28068973536192.

The previous prime is 28068973536143. The next prime is 28068973536269. The reversal of 28068973536193 is 39163537986082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21740845893264 + 6328127642929 = 4662708^2 + 2515577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28068973536193 is a prime.

It is not a weakly prime, because it can be changed into another prime (28068973536113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14034486768096 + 14034486768097.

It is an arithmetic number, because the mean of its divisors is an integer number (14034486768097).

Almost surely, 2^{28068973536193} is an apocalyptic number.

It is an amenable number.

28068973536193 is a deficient number, since it is larger than the sum of its proper divisors (1).

28068973536193 is an equidigital number, since it uses as much as digits as its factorization.

28068973536193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352719360, while the sum is 70.

The spelling of 28068973536193 in words is "twenty-eight trillion, sixty-eight billion, nine hundred seventy-three million, five hundred thirty-six thousand, one hundred ninety-three".