10871686261 has 2 divisors, whose sum is σ = 10871686262. Its totient is φ = 10871686260.

The previous prime is 10871686223. The next prime is 10871686277. The reversal of 10871686261 is 16268617801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9583235236 + 1288451025 = 97894^2 + 35895^2 .

It is a cyclic number.

It is not a de Polignac number, because 10871686261 - 2⁹ = 10871685749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10871683261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5435843130 + 5435843131.

It is an arithmetic number, because the mean of its divisors is an integer number (5435843131).

Almost surely, 2^10871686261 is an apocalyptic number.

It is an amenable number.

10871686261 is a deficient number, since it is larger than the sum of its proper divisors (1).

10871686261 is an equidigital number, since it uses as much as digits as its factorization.

10871686261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 10871686261 in words is "ten billion, eight hundred seventy-one million, six hundred eighty-six thousand, two hundred sixty-one".