12045412585 has 4 divisors (see below), whose sum is σ = 14454495108. Its totient is φ = 9636330064.

The previous prime is 12045412579. The next prime is 12045412601. The reversal of 12045412585 is 58521454021.

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 1835522649 + 10209889936 = 42843^2 + 101044^2 .

It is a cyclic number.

It is not a de Polignac number, because 12045412585 - 2²⁵ = 12011858153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204541254 + ... + 1204541263.

It is an arithmetic number, because the mean of its divisors is an integer number (3613623777).

Almost surely, 2^12045412585 is an apocalyptic number.

It is an amenable number.

12045412585 is a deficient number, since it is larger than the sum of its proper divisors (2409082523).

12045412585 is an equidigital number, since it uses as much as digits as its factorization.

12045412585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409082522.

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 12045412585 in words is "twelve billion, forty-five million, four hundred twelve thousand, five hundred eighty-five".