12642043142 has 8 divisors (see below), whose sum is σ = 19042408800. Its totient is φ = 6294573544.

The previous prime is 12642043087. The next prime is 12642043151. The reversal of 12642043142 is 24134024621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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, 13223417 + ... + 13224372.

It is an arithmetic number, because the mean of its divisors is an integer number (2380301100).

Almost surely, 2^12642043142 is an apocalyptic number.

12642043142 is a deficient number, since it is larger than the sum of its proper divisors (6400365658).

12642043142 is a wasteful number, since it uses less digits than its factorization.

12642043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26448030.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 12642043142 its reverse (24134024621), we get a palindrome (36776067763).

The spelling of 12642043142 in words is "twelve billion, six hundred forty-two million, forty-three thousand, one hundred forty-two".