260791331897 has 2 divisors, whose sum is σ = 260791331898. Its totient is φ = 260791331896.

The previous prime is 260791331873. The next prime is 260791331917. The reversal of 260791331897 is 798133197062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130978124281 + 129813207616 = 361909^2 + 360296^2 .

It is a cyclic number.

It is not a de Polignac number, because 260791331897 - 2⁶ = 260791331833 is a prime.

It is a super-2 number, since 2×260791331897² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (260791331597) 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, 130395665948 + 130395665949.

It is an arithmetic number, because the mean of its divisors is an integer number (130395665949).

Almost surely, 2^260791331897 is an apocalyptic number.

It is an amenable number.

260791331897 is a deficient number, since it is larger than the sum of its proper divisors (1).

260791331897 is an equidigital number, since it uses as much as digits as its factorization.

260791331897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 260791331897 in words is "two hundred sixty billion, seven hundred ninety-one million, three hundred thirty-one thousand, eight hundred ninety-seven".