8716609226721 has 8 divisors (see below), whose sum is σ = 12678704329824. Its totient is φ = 5282793470720.

The previous prime is 8716609226719. The next prime is 8716609226789. The reversal of 8716609226721 is 1276229066178.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8716609226721 - 2¹ = 8716609226719 is a prime.

It is a super-2 number, since 2×8716609226721² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8716609236721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132069836736 + ... + 132069836801.

It is an arithmetic number, because the mean of its divisors is an integer number (1584838041228).

Almost surely, 2^{8716609226721} is an apocalyptic number.

It is an amenable number.

8716609226721 is a deficient number, since it is larger than the sum of its proper divisors (3962095103103).

8716609226721 is a wasteful number, since it uses less digits than its factorization.

8716609226721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264139673551.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 8716609226721 in words is "eight trillion, seven hundred sixteen billion, six hundred nine million, two hundred twenty-six thousand, seven hundred twenty-one".