9976729715441 has 4 divisors (see below), whose sum is σ = 9976972635252. Its totient is φ = 9976486795632.

The previous prime is 9976729715417. The next prime is 9976729715479. The reversal of 9976729715441 is 1445179276799.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8366724015841 + 1610005699600 = 2892529^2 + 1268860^2 .

It is a cyclic number.

It is not a de Polignac number, because 9976729715441 - 2³⁸ = 9701851808497 is a prime.

It is a super-3 number, since 3×9976729715441³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9976729715741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121398290 + ... + 121480443.

It is an arithmetic number, because the mean of its divisors is an integer number (2494243158813).

Almost surely, 2^{9976729715441} is an apocalyptic number.

It is an amenable number.

9976729715441 is a deficient number, since it is larger than the sum of its proper divisors (242919811).

9976729715441 is a wasteful number, since it uses less digits than its factorization.

9976729715441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242919810.

The product of its digits is 240045120, while the sum is 71.

The spelling of 9976729715441 in words is "nine trillion, nine hundred seventy-six billion, seven hundred twenty-nine million, seven hundred fifteen thousand, four hundred forty-one".