9931889650712 has 16 divisors (see below), whose sum is σ = 19602413784600. Its totient is φ = 4704579308160.

The previous prime is 9931889650699. The next prime is 9931889650721. The reversal of 9931889650712 is 2170569881399.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32670689489 + ... + 32670689792.

Almost surely, 2^{9931889650712} is an apocalyptic number.

It is an amenable number.

9931889650712 is a deficient number, since it is larger than the sum of its proper divisors (9670524133888).

9931889650712 is a wasteful number, since it uses less digits than its factorization.

9931889650712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65341379306 (or 65341379302 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 68.

The spelling of 9931889650712 in words is "nine trillion, nine hundred thirty-one billion, eight hundred eighty-nine million, six hundred fifty thousand, seven hundred twelve".