8909097909099 has 16 divisors (see below), whose sum is σ = 11973581402112. Its totient is φ = 5892016279968.

The previous prime is 8909097909053. The next prime is 8909097909119. The reversal of 8909097909099 is 9909097909098.

It is a happy number.

It is not a de Polignac number, because 8909097909099 - 2²⁴ = 8909081131883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8909097909499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2446312 + ... + 4878794.

It is an arithmetic number, because the mean of its divisors is an integer number (748348837632).

Almost surely, 2^{8909097909099} is an apocalyptic number.

8909097909099 is a deficient number, since it is larger than the sum of its proper divisors (3064483493013).

8909097909099 is a wasteful number, since it uses less digits than its factorization.

8909097909099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442226.

The product of its (nonzero) digits is 267846264, while the sum is 78.

Subtracting 8909097909099 from its reverse (9909097909098), we obtain a palindrome (999999999999).

The spelling of 8909097909099 in words is "eight trillion, nine hundred nine billion, ninety-seven million, nine hundred nine thousand, ninety-nine".