8801326690209 has 9 divisors (see below), whose sum is σ = 12713040297139. Its totient is φ = 5867545193400.

The previous prime is 8801326690207. The next prime is 8801326690217. The reversal of 8801326690209 is 9020966231088.

The square root of 8801326690209 is 2966703.

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

8801326690209 is a `hidden beast` number, since 8 + 80 + 13 + 266 + 90 + 209 = 666.

8801326690209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4007591598609 + 4793735091600 = 2001897^2 + 2189460^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 8801326690209 - 2¹ = 8801326690207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8801326690207) 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, 8405659 + ... + 9394559.

Almost surely, 2^{8801326690209} is an apocalyptic number.

8801326690209 is the 2966703-rd square number.

8801326690209 is the 1483352-nd centered octagonal number.

It is an amenable number.

8801326690209 is a deficient number, since it is larger than the sum of its proper divisors (3911713606930).

8801326690209 is an frugal number, since it uses more digits than its factorization.

8801326690209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977808 (or 988904 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 8801326690209 in words is "eight trillion, eight hundred one billion, three hundred twenty-six million, six hundred ninety thousand, two hundred nine".