28068973536287 has 2 divisors, whose sum is σ = 28068973536288. Its totient is φ = 28068973536286.

The previous prime is 28068973536269. The next prime is 28068973536313. The reversal of 28068973536287 is 78263537986082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28068973536287 - 2²⁰ = 28068972487711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28068973556287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14034486768143 + 14034486768144.

It is an arithmetic number, because the mean of its divisors is an integer number (14034486768144).

Almost surely, 2^{28068973536287} is an apocalyptic number.

28068973536287 is a deficient number, since it is larger than the sum of its proper divisors (1).

28068973536287 is an equidigital number, since it uses as much as digits as its factorization.

28068973536287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1463132160, while the sum is 74.

The spelling of 28068973536287 in words is "twenty-eight trillion, sixty-eight billion, nine hundred seventy-three million, five hundred thirty-six thousand, two hundred eighty-seven".