18052048120445 has 4 divisors (see below), whose sum is σ = 21662457744540. Its totient is φ = 14441638496352.

The previous prime is 18052048120399. The next prime is 18052048120451. The reversal of 18052048120445 is 54402184025081.

It is a happy number.

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 2508986304484 + 15543061815961 = 1583978^2 + 3942469^2 .

It is a cyclic number.

It is not a de Polignac number, because 18052048120445 - 2²² = 18052043926141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18052048120396 and 18052048120405.

It is a congruent number.

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, 1805204812040 + ... + 1805204812049.

It is an arithmetic number, because the mean of its divisors is an integer number (5415614436135).

Almost surely, 2^{18052048120445} is an apocalyptic number.

It is an amenable number.

18052048120445 is a deficient number, since it is larger than the sum of its proper divisors (3610409624095).

18052048120445 is an equidigital number, since it uses as much as digits as its factorization.

18052048120445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610409624094.

The product of its (nonzero) digits is 409600, while the sum is 44.

The spelling of 18052048120445 in words is "eighteen trillion, fifty-two billion, forty-eight million, one hundred twenty thousand, four hundred forty-five".