28705845133033 has 2 divisors, whose sum is σ = 28705845133034. Its totient is φ = 28705845133032.

The previous prime is 28705845133019. The next prime is 28705845133057. The reversal of 28705845133033 is 33033154850782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26766933700329 + 1938911432704 = 5173677^2 + 1392448^2 .

It is a cyclic number.

It is not a de Polignac number, because 28705845133033 - 2⁹ = 28705845132521 is a prime.

It is not a weakly prime, because it can be changed into another prime (28705845163033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14352922566516 + 14352922566517.

It is an arithmetic number, because the mean of its divisors is an integer number (14352922566517).

Almost surely, 2^{28705845133033} is an apocalyptic number.

It is an amenable number.

28705845133033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28705845133033 is an equidigital number, since it uses as much as digits as its factorization.

28705845133033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 28705845133033 in words is "twenty-eight trillion, seven hundred five billion, eight hundred forty-five million, one hundred thirty-three thousand, thirty-three".