1109845041985 has 8 divisors (see below), whose sum is σ = 1354387170240. Its totient is φ = 872827287024.

The previous prime is 1109845041953. The next prime is 1109845041997. The reversal of 1109845041985 is 5891405489011.

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 1109845041985 - 2⁵ = 1109845041953 is a prime.

It is an unprimeable number.

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, 1881092997 + ... + 1881093586.

It is an arithmetic number, because the mean of its divisors is an integer number (169298396280).

Almost surely, 2^{1109845041985} is an apocalyptic number.

It is an amenable number.

1109845041985 is a deficient number, since it is larger than the sum of its proper divisors (244542128255).

1109845041985 is an equidigital number, since it uses as much as digits as its factorization.

1109845041985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762186647.

The product of its (nonzero) digits is 2073600, while the sum is 55.

The spelling of 1109845041985 in words is "one trillion, one hundred nine billion, eight hundred forty-five million, forty-one thousand, nine hundred eighty-five".