1109545609919 has 8 divisors (see below), whose sum is σ = 1141529030928. Its totient is φ = 1077667225920.

The previous prime is 1109545609903. The next prime is 1109545609961. The reversal of 1109545609919 is 9199065459011.

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 1109545609919 - 2⁴ = 1109545609903 is a prime.

It is a super-2 number, since 2×1109545609919² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109545609979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26237822 + ... + 26280075.

It is an arithmetic number, because the mean of its divisors is an integer number (142691128866).

Almost surely, 2^{1109545609919} is an apocalyptic number.

1109545609919 is a deficient number, since it is larger than the sum of its proper divisors (31983421009).

1109545609919 is an equidigital number, since it uses as much as digits as its factorization.

1109545609919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52518505.

The product of its (nonzero) digits is 3936600, while the sum is 59.

The spelling of 1109545609919 in words is "one trillion, one hundred nine billion, five hundred forty-five million, six hundred nine thousand, nine hundred nineteen".