260902171729 has 2 divisors, whose sum is σ = 260902171730. Its totient is φ = 260902171728.

The previous prime is 260902171703. The next prime is 260902171753. The reversal of 260902171729 is 927171209062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255654618129 + 5247553600 = 505623^2 + 72440^2 .

It is a cyclic number.

It is not a de Polignac number, because 260902171729 - 2¹¹ = 260902169681 is a prime.

It is not a weakly prime, because it can be changed into another prime (260902171799) 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, 130451085864 + 130451085865.

It is an arithmetic number, because the mean of its divisors is an integer number (130451085865).

Almost surely, 2^260902171729 is an apocalyptic number.

It is an amenable number.

260902171729 is a deficient number, since it is larger than the sum of its proper divisors (1).

260902171729 is an equidigital number, since it uses as much as digits as its factorization.

260902171729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 260902171729 in words is "two hundred sixty billion, nine hundred two million, one hundred seventy-one thousand, seven hundred twenty-nine".