42012144244 has 24 divisors (see below), whose sum is σ = 84795159680. Its totient is φ = 17840018016.

The previous prime is 42012144197. The next prime is 42012144257. The reversal of 42012144244 is 44244121024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 in 7 ways as a sum of consecutive naturals, for example, 6879672 + ... + 6885775.

Almost surely, 2^42012144244 is an apocalyptic number.

It is an amenable number.

42012144244 is an abundant number, since it is smaller than the sum of its proper divisors (42783015436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42012144244 is a wasteful number, since it uses less digits than its factorization.

42012144244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765567 (or 13765565 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 42012144244 its reverse (44244121024), we get a palindrome (86256265268).

The spelling of 42012144244 in words is "forty-two billion, twelve million, one hundred forty-four thousand, two hundred forty-four".