12585585542 has 4 divisors (see below), whose sum is σ = 18878378316. Its totient is φ = 6292792770.

The previous prime is 12585585521. The next prime is 12585585569. The reversal of 12585585542 is 24558558521.

12585585542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3146396384 + ... + 3146396387.

It is an arithmetic number, because the mean of its divisors is an integer number (4719594579).

Almost surely, 2^12585585542 is an apocalyptic number.

12585585542 is a deficient number, since it is larger than the sum of its proper divisors (6292792774).

12585585542 is an equidigital number, since it uses as much as digits as its factorization.

12585585542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6292792773.

The product of its digits is 3200000, while the sum is 50.

The spelling of 12585585542 in words is "twelve billion, five hundred eighty-five million, five hundred eighty-five thousand, five hundred forty-two".