71317527713 has 8 divisors (see below), whose sum is σ = 77553560232. Its totient is φ = 65308260096.

The previous prime is 71317527683. The next prime is 71317527769. The reversal of 71317527713 is 31772571317.

It can be written as a sum of positive squares in 4 ways, for example, as 49581038224 + 21736489489 = 222668^2 + 147433^2 .

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 71317527713 - 2⁶ = 71317527649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71317524713) 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 7 ways as a sum of consecutive naturals, for example, 56690570 + ... + 56691827.

It is an arithmetic number, because the mean of its divisors is an integer number (9694195029).

Almost surely, 2^71317527713 is an apocalyptic number.

It is an amenable number.

71317527713 is a deficient number, since it is larger than the sum of its proper divisors (6236032519).

71317527713 is a wasteful number, since it uses less digits than its factorization.

71317527713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113382451.

The product of its digits is 216090, while the sum is 44.

The spelling of 71317527713 in words is "seventy-one billion, three hundred seventeen million, five hundred twenty-seven thousand, seven hundred thirteen".