1800042110345 has 4 divisors (see below), whose sum is σ = 2160050532420. Its totient is φ = 1440033688272.

The previous prime is 1800042110297. The next prime is 1800042110407. The reversal of 1800042110345 is 5430112400081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223028563081 + 1577013547264 = 472259^2 + 1255792^2 .

It is a cyclic number.

It is not a de Polignac number, because 1800042110345 - 2¹⁴ = 1800042093961 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 180004211030 + ... + 180004211039.

It is an arithmetic number, because the mean of its divisors is an integer number (540012633105).

Almost surely, 2^{1800042110345} is an apocalyptic number.

It is an amenable number.

1800042110345 is a deficient number, since it is larger than the sum of its proper divisors (360008422075).

1800042110345 is an equidigital number, since it uses as much as digits as its factorization.

1800042110345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360008422074.

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 1800042110345 in words is "one trillion, eight hundred billion, forty-two million, one hundred ten thousand, three hundred forty-five".