9997741665976 has 16 divisors (see below), whose sum is σ = 18771837631200. Its totient is φ = 4991918297664.

The previous prime is 9997741665943. The next prime is 9997741666007. The reversal of 9997741665976 is 6795661477999.

It is a junction number, because it is equal to n+sod(n) for n = 9997741665893 and 9997741665902.

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, 869060805 + ... + 869072308.

It is an arithmetic number, because the mean of its divisors is an integer number (1173239851950).

Almost surely, 2^{9997741665976} is an apocalyptic number.

It is an amenable number.

9997741665976 is a deficient number, since it is larger than the sum of its proper divisors (8774095965224).

9997741665976 is a wasteful number, since it uses less digits than its factorization.

9997741665976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738133838 (or 1738133834 counting only the distinct ones).

The product of its digits is 9721827360, while the sum is 85.

The spelling of 9997741665976 in words is "nine trillion, nine hundred ninety-seven billion, seven hundred forty-one million, six hundred sixty-five thousand, nine hundred seventy-six".