71068712105 has 8 divisors (see below), whose sum is σ = 88223229000. Its totient is φ = 54894453376.

The previous prime is 71068712093. The next prime is 71068712107. The reversal of 71068712105 is 50121786017.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12227051776 + 58841660329 = 110576^2 + 242573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71068712105 - 2¹⁶ = 71068646569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71068712107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245064380 + ... + 245064669.

It is an arithmetic number, because the mean of its divisors is an integer number (11027903625).

Almost surely, 2^71068712105 is an apocalyptic number.

It is an amenable number.

71068712105 is a deficient number, since it is larger than the sum of its proper divisors (17154516895).

71068712105 is a wasteful number, since it uses less digits than its factorization.

71068712105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490129083.

The product of its (nonzero) digits is 23520, while the sum is 38.

The spelling of 71068712105 in words is "seventy-one billion, sixty-eight million, seven hundred twelve thousand, one hundred five".