2169441245909 has 12 divisors (see below), whose sum is σ = 2525305997088. Its totient is φ = 1858290348600.

The previous prime is 2169441245869. The next prime is 2169441245911. The reversal of 2169441245909 is 9095421449612.

It is a happy number.

It is not a de Polignac number, because 2169441245909 - 2¹⁶ = 2169441180373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169441245989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14576627 + ... + 14724704.

It is an arithmetic number, because the mean of its divisors is an integer number (210442166424).

Almost surely, 2^{2169441245909} is an apocalyptic number.

It is an amenable number.

2169441245909 is a deficient number, since it is larger than the sum of its proper divisors (355864751179).

2169441245909 is a wasteful number, since it uses less digits than its factorization.

2169441245909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29302856 (or 29302849 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 2169441245909 in words is "two trillion, one hundred sixty-nine billion, four hundred forty-one million, two hundred forty-five thousand, nine hundred nine".