42145442342 has 16 divisors (see below), whose sum is σ = 63689928912. Its totient is φ = 20915516160.

The previous prime is 42145442327. The next prime is 42145442377. The reversal of 42145442342 is 24324454124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3073742 + ... + 3087422.

It is an arithmetic number, because the mean of its divisors is an integer number (3980620557).

Almost surely, 2^42145442342 is an apocalyptic number.

42145442342 is a deficient number, since it is larger than the sum of its proper divisors (21544486570).

42145442342 is a wasteful number, since it uses less digits than its factorization.

42145442342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25063.

The product of its digits is 122880, while the sum is 35.

Adding to 42145442342 its reverse (24324454124), we get a palindrome (66469896466).

The spelling of 42145442342 in words is "forty-two billion, one hundred forty-five million, four hundred forty-two thousand, three hundred forty-two".