71120534575138 has 8 divisors (see below), whose sum is σ = 106719609001500. Its totient is φ = 35547331574640.

The previous prime is 71120534575133. The next prime is 71120534575163. The reversal of 71120534575138 is 83157543502117.

It can be written as a sum of positive squares in 2 ways, for example, as 63013320476649 + 8107214098489 = 7938093^2 + 2847317^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71120534575133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6467849593 + ... + 6467860588.

Almost surely, 2^{71120534575138} is an apocalyptic number.

71120534575138 is a deficient number, since it is larger than the sum of its proper divisors (35599074426362).

71120534575138 is a wasteful number, since it uses less digits than its factorization.

71120534575138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935712932.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 71120534575138 in words is "seventy-one trillion, one hundred twenty billion, five hundred thirty-four million, five hundred seventy-five thousand, one hundred thirty-eight".