8971716988097 has 4 divisors (see below), whose sum is σ = 8971830373716. Its totient is φ = 8971603602480.

The previous prime is 8971716988079. The next prime is 8971716988109. The reversal of 8971716988097 is 7908896171798.

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 4350524095681 + 4621192892416 = 2085791^2 + 2149696^2 .

It is a cyclic number.

It is not a de Polignac number, because 8971716988097 - 2¹⁴ = 8971716971713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8971716918097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56574038 + ... + 56732399.

It is an arithmetic number, because the mean of its divisors is an integer number (2242957593429).

Almost surely, 2^{8971716988097} is an apocalyptic number.

It is an amenable number.

8971716988097 is a deficient number, since it is larger than the sum of its proper divisors (113385619).

8971716988097 is a wasteful number, since it uses less digits than its factorization.

8971716988097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113385618.

The product of its (nonzero) digits is 768144384, while the sum is 80.

The spelling of 8971716988097 in words is "eight trillion, nine hundred seventy-one billion, seven hundred sixteen million, nine hundred eighty-eight thousand, ninety-seven".