260505237871 has 2 divisors, whose sum is σ = 260505237872. Its totient is φ = 260505237870.

The previous prime is 260505237869. The next prime is 260505237887. The reversal of 260505237871 is 178732505062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260505237871 - 2¹ = 260505237869 is a prime.

It is a super-2 number, since 2×260505237871² (a number of 24 digits) contains 22 as substring.

Together with 260505237869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260505238871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130252618935 + 130252618936.

It is an arithmetic number, because the mean of its divisors is an integer number (130252618936).

Almost surely, 2^260505237871 is an apocalyptic number.

260505237871 is a deficient number, since it is larger than the sum of its proper divisors (1).

260505237871 is an equidigital number, since it uses as much as digits as its factorization.

260505237871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 260505237871 in words is "two hundred sixty billion, five hundred five million, two hundred thirty-seven thousand, eight hundred seventy-one".