71351815317 has 16 divisors (see below), whose sum is σ = 98674401792. Its totient is φ = 45824011200.

The previous prime is 71351815303. The next prime is 71351815363.

71351815317 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 71351815317 - 2⁸ = 71351815061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71351819317) 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 15 ways as a sum of consecutive naturals, for example, 3171013 + ... + 3193434.

It is an arithmetic number, because the mean of its divisors is an integer number (6167150112).

Almost surely, 2^71351815317 is an apocalyptic number.

It is an amenable number.

71351815317 is a deficient number, since it is larger than the sum of its proper divisors (27322586475).

71351815317 is a wasteful number, since it uses less digits than its factorization.

71351815317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364588.

The product of its digits is 88200, while the sum is 42.

The spelling of 71351815317 in words is "seventy-one billion, three hundred fifty-one million, eight hundred fifteen thousand, three hundred seventeen".