71709545075 has 12 divisors (see below), whose sum is σ = 101622669840. Its totient is φ = 49172259360.

The previous prime is 71709545053. The next prime is 71709545099. The reversal of 71709545075 is 57054590717.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-71709545075 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204884240 + ... + 204884589.

It is an arithmetic number, because the mean of its divisors is an integer number (8468555820).

Almost surely, 2^71709545075 is an apocalyptic number.

71709545075 is a deficient number, since it is larger than the sum of its proper divisors (29913124765).

71709545075 is a wasteful number, since it uses less digits than its factorization.

71709545075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409768846 (or 409768841 counting only the distinct ones).

The product of its (nonzero) digits is 1543500, while the sum is 50.

The spelling of 71709545075 in words is "seventy-one billion, seven hundred nine million, five hundred forty-five thousand, seventy-five".