260960328766289 has 2 divisors, whose sum is σ = 260960328766290. Its totient is φ = 260960328766288.

The previous prime is 260960328766271. The next prime is 260960328766301. The reversal of 260960328766289 is 982667823069062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224225916930625 + 36734411835664 = 14974175^2 + 6060892^2 .

It is a cyclic number.

It is not a de Polignac number, because 260960328766289 - 2²⁴ = 260960311989073 is a prime.

It is not a weakly prime, because it can be changed into another prime (260960328766889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130480164383144 + 130480164383145.

It is an arithmetic number, because the mean of its divisors is an integer number (130480164383145).

Almost surely, 2^{260960328766289} is an apocalyptic number.

It is an amenable number.

260960328766289 is a deficient number, since it is larger than the sum of its proper divisors (1).

260960328766289 is an equidigital number, since it uses as much as digits as its factorization.

260960328766289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128701952, while the sum is 74.

The spelling of 260960328766289 in words is "two hundred sixty trillion, nine hundred sixty billion, three hundred twenty-eight million, seven hundred sixty-six thousand, two hundred eighty-nine".