42251344242 has 16 divisors (see below), whose sum is σ = 84522655200. Its totient is φ = 14080453632.

The previous prime is 42251344217. The next prime is 42251344249. The reversal of 42251344242 is 24244315224.

It is not an unprimeable number, because it can be changed into a prime (42251344249) by changing a digit.

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, 804367 + ... + 855282.

It is an arithmetic number, because the mean of its divisors is an integer number (5282665950).

Almost surely, 2^42251344242 is an apocalyptic number.

42251344242 is an abundant number, since it is smaller than the sum of its proper divisors (42271310958).

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

42251344242 is a wasteful number, since it uses less digits than its factorization.

42251344242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663897.

The product of its digits is 61440, while the sum is 33.

Adding to 42251344242 its reverse (24244315224), we get a palindrome (66495659466).

The spelling of 42251344242 in words is "forty-two billion, two hundred fifty-one million, three hundred forty-four thousand, two hundred forty-two".