71930233564 has 24 divisors (see below), whose sum is σ = 143892019040. Its totient is φ = 30820481856.

The previous prime is 71930233513. The next prime is 71930233597. The reversal of 71930233564 is 46533203917.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71930233564.

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, 150699 + ... + 408130.

Almost surely, 2^71930233564 is an apocalyptic number.

It is an amenable number.

71930233564 is an abundant number, since it is smaller than the sum of its proper divisors (71961785476).

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

71930233564 is a wasteful number, since it uses less digits than its factorization.

71930233564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563437 (or 563435 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 71930233564 in words is "seventy-one billion, nine hundred thirty million, two hundred thirty-three thousand, five hundred sixty-four".