71217534073 has 16 divisors (see below), whose sum is σ = 88629552000. Its totient is φ = 55836611712.

The previous prime is 71217534071. The next prime is 71217534077. The reversal of 71217534073 is 37043571217.

It is not a de Polignac number, because 71217534073 - 2¹ = 71217534071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71217534071) 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, 9228388 + ... + 9236101.

It is an arithmetic number, because the mean of its divisors is an integer number (5539347000).

Almost surely, 2^71217534073 is an apocalyptic number.

It is an amenable number.

71217534073 is a deficient number, since it is larger than the sum of its proper divisors (17412017927).

71217534073 is a wasteful number, since it uses less digits than its factorization.

71217534073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18464544.

The product of its (nonzero) digits is 123480, while the sum is 40.

The spelling of 71217534073 in words is "seventy-one billion, two hundred seventeen million, five hundred thirty-four thousand, seventy-three".