71734528817 has 8 divisors (see below), whose sum is σ = 82118733312. Its totient is φ = 61384428000.

The previous prime is 71734528769. The next prime is 71734528841. The reversal of 71734528817 is 71882543717.

It is a happy number.

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

It is not a de Polignac number, because 71734528817 - 2⁶ = 71734528753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71734527817) 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, 8521409 + ... + 8529822.

It is an arithmetic number, because the mean of its divisors is an integer number (10264841664).

Almost surely, 2^71734528817 is an apocalyptic number.

It is an amenable number.

71734528817 is a deficient number, since it is larger than the sum of its proper divisors (10384204495).

71734528817 is a wasteful number, since it uses less digits than its factorization.

71734528817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17051839.

The product of its digits is 2634240, while the sum is 53.

The spelling of 71734528817 in words is "seventy-one billion, seven hundred thirty-four million, five hundred twenty-eight thousand, eight hundred seventeen".