71272096514209 has 2 divisors, whose sum is σ = 71272096514210. Its totient is φ = 71272096514208.

The previous prime is 71272096514207. The next prime is 71272096514233. The reversal of 71272096514209 is 90241569027217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44085549693025 + 27186546821184 = 6639695^2 + 5214072^2 .

It is a cyclic number.

It is not a de Polignac number, because 71272096514209 - 2¹ = 71272096514207 is a prime.

Together with 71272096514207, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71272096514209.

It is not a weakly prime, because it can be changed into another prime (71272096514207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35636048257104 + 35636048257105.

It is an arithmetic number, because the mean of its divisors is an integer number (35636048257105).

Almost surely, 2^{71272096514209} is an apocalyptic number.

It is an amenable number.

71272096514209 is a deficient number, since it is larger than the sum of its proper divisors (1).

71272096514209 is an equidigital number, since it uses as much as digits as its factorization.

71272096514209 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 55.

The spelling of 71272096514209 in words is "seventy-one trillion, two hundred seventy-two billion, ninety-six million, five hundred fourteen thousand, two hundred nine".