8676541686409 has 9 divisors (see below), whose sum is σ = 8695437444813. Its totient is φ = 8657686920012.

The previous prime is 8676541686391. The next prime is 8676541686437. The reversal of 8676541686409 is 9046861456768.

The square root of 8676541686409 is 2945597.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 8676541686409 - 2⁹ = 8676541685897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8676541686509) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1469849952 + ... + 1469855854.

Almost surely, 2^{8676541686409} is an apocalyptic number.

8676541686409 is the 2945597-th square number.

8676541686409 is the 1472799-th centered octagonal number.

It is an amenable number.

8676541686409 is a deficient number, since it is larger than the sum of its proper divisors (18895758404).

8676541686409 is an frugal number, since it uses more digits than its factorization.

8676541686409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12804 (or 6402 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 70.

The spelling of 8676541686409 in words is "eight trillion, six hundred seventy-six billion, five hundred forty-one million, six hundred eighty-six thousand, four hundred nine".