71296569317 has 4 divisors (see below), whose sum is σ = 72641787660. Its totient is φ = 69951350976.

The previous prime is 71296569287. The next prime is 71296569353. The reversal of 71296569317 is 71396569217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34091560321 + 37205008996 = 184639^2 + 192886^2 .

It is a cyclic number.

It is not a de Polignac number, because 71296569317 - 2⁸ = 71296569061 is a prime.

It is a super-3 number, since 3×71296569317³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71296569217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672609092 + ... + 672609197.

It is an arithmetic number, because the mean of its divisors is an integer number (18160446915).

Almost surely, 2^71296569317 is an apocalyptic number.

It is an amenable number.

71296569317 is a deficient number, since it is larger than the sum of its proper divisors (1345218343).

71296569317 is a wasteful number, since it uses less digits than its factorization.

71296569317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345218342.

The product of its digits is 4286520, while the sum is 56.

The spelling of 71296569317 in words is "seventy-one billion, two hundred ninety-six million, five hundred sixty-nine thousand, three hundred seventeen".