9791147319989 has 24 divisors (see below), whose sum is σ = 11404229126400. Its totient is φ = 8381711126880.

The previous prime is 9791147319953. The next prime is 9791147320013. The reversal of 9791147319989 is 9899137411979.

It is a de Polignac number, because none of the positive numbers 2^k-9791147319989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9791147319089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304823672 + ... + 304855790.

It is an arithmetic number, because the mean of its divisors is an integer number (475176213600).

Almost surely, 2^{9791147319989} is an apocalyptic number.

It is an amenable number.

9791147319989 is a deficient number, since it is larger than the sum of its proper divisors (1613081806411).

9791147319989 is a wasteful number, since it uses less digits than its factorization.

9791147319989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39873 (or 39866 counting only the distinct ones).

The product of its digits is 277766496, while the sum is 77.

The spelling of 9791147319989 in words is "nine trillion, seven hundred ninety-one billion, one hundred forty-seven million, three hundred nineteen thousand, nine hundred eighty-nine".