71935559668 has 48 divisors (see below), whose sum is σ = 144999106560. Its totient is φ = 30588101856.

The previous prime is 71935559603. The next prime is 71935559671. The reversal of 71935559668 is 86695553917.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7183521 + ... + 7193527.

It is an arithmetic number, because the mean of its divisors is an integer number (3020814720).

Almost surely, 2^71935559668 is an apocalyptic number.

It is an amenable number.

71935559668 is an abundant number, since it is smaller than the sum of its proper divisors (73063546892).

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

71935559668 is a wasteful number, since it uses less digits than its factorization.

71935559668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12004 (or 12002 counting only the distinct ones).

The product of its digits is 61236000, while the sum is 64.

The spelling of 71935559668 in words is "seventy-one billion, nine hundred thirty-five million, five hundred fifty-nine thousand, six hundred sixty-eight".