260788727343257 has 2 divisors, whose sum is σ = 260788727343258. Its totient is φ = 260788727343256.

The previous prime is 260788727343251. The next prime is 260788727343293. The reversal of 260788727343257 is 752343727887062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188732753904016 + 72055973439241 = 13738004^2 + 8488579^2 .

It is a cyclic number.

It is not a de Polignac number, because 260788727343257 - 2¹⁶ = 260788727277721 is a prime.

It is not a weakly prime, because it can be changed into another prime (260788727343251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130394363671628 + 130394363671629.

It is an arithmetic number, because the mean of its divisors is an integer number (130394363671629).

Almost surely, 2^{260788727343257} is an apocalyptic number.

It is an amenable number.

260788727343257 is a deficient number, since it is larger than the sum of its proper divisors (1).

260788727343257 is an equidigital number, since it uses as much as digits as its factorization.

260788727343257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327656960, while the sum is 71.

The spelling of 260788727343257 in words is "two hundred sixty trillion, seven hundred eighty-eight billion, seven hundred twenty-seven million, three hundred forty-three thousand, two hundred fifty-seven".