261674360175113 has 2 divisors, whose sum is σ = 261674360175114. Its totient is φ = 261674360175112.

The previous prime is 261674360175103. The next prime is 261674360175149. The reversal of 261674360175113 is 311571063476162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150734231547769 + 110940128627344 = 12277387^2 + 10532812^2 .

It is a cyclic number.

It is not a de Polignac number, because 261674360175113 - 2⁴ = 261674360175097 is a prime.

It is not a weakly prime, because it can be changed into another prime (261674360175103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130837180087556 + 130837180087557.

It is an arithmetic number, because the mean of its divisors is an integer number (130837180087557).

Almost surely, 2^{261674360175113} is an apocalyptic number.

It is an amenable number.

261674360175113 is a deficient number, since it is larger than the sum of its proper divisors (1).

261674360175113 is an equidigital number, since it uses as much as digits as its factorization.

261674360175113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 261674360175113 in words is "two hundred sixty-one trillion, six hundred seventy-four billion, three hundred sixty million, one hundred seventy-five thousand, one hundred thirteen".