261451114424713 has 2 divisors, whose sum is σ = 261451114424714. Its totient is φ = 261451114424712.

The previous prime is 261451114424677. The next prime is 261451114424741. The reversal of 261451114424713 is 317424411154162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169837272458569 + 91613841966144 = 13032163^2 + 9571512^2 .

It is a cyclic number.

It is not a de Polignac number, because 261451114424713 - 2²⁹ = 261450577553801 is a prime.

It is not a weakly prime, because it can be changed into another prime (261451114424743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130725557212356 + 130725557212357.

It is an arithmetic number, because the mean of its divisors is an integer number (130725557212357).

Almost surely, 2^{261451114424713} is an apocalyptic number.

It is an amenable number.

261451114424713 is a deficient number, since it is larger than the sum of its proper divisors (1).

261451114424713 is an equidigital number, since it uses as much as digits as its factorization.

261451114424713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 46.

Adding to 261451114424713 its reverse (317424411154162), we get a palindrome (578875525578875).

The spelling of 261451114424713 in words is "two hundred sixty-one trillion, four hundred fifty-one billion, one hundred fourteen million, four hundred twenty-four thousand, seven hundred thirteen".