71711659768 has 32 divisors (see below), whose sum is σ = 153684264960. Its totient is φ = 30730284000.

The previous prime is 71711659751. The next prime is 71711659771. The reversal of 71711659768 is 86795611717.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 502393 + ... + 629143.

It is an arithmetic number, because the mean of its divisors is an integer number (4802633280).

Almost surely, 2^71711659768 is an apocalyptic number.

It is an amenable number.

71711659768 is an abundant number, since it is smaller than the sum of its proper divisors (81972605192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71711659768 is a wasteful number, since it uses less digits than its factorization.

71711659768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136867 (or 136863 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 58.

The spelling of 71711659768 in words is "seventy-one billion, seven hundred eleven million, six hundred fifty-nine thousand, seven hundred sixty-eight".