42205042142 has 4 divisors (see below), whose sum is σ = 63307563216. Its totient is φ = 21102521070.

The previous prime is 42205042109. The next prime is 42205042147. The reversal of 42205042142 is 24124050224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42205042147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551260534 + ... + 10551260537.

It is an arithmetic number, because the mean of its divisors is an integer number (15826890804).

Almost surely, 2^42205042142 is an apocalyptic number.

42205042142 is a deficient number, since it is larger than the sum of its proper divisors (21102521074).

42205042142 is a wasteful number, since it uses less digits than its factorization.

42205042142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102521073.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 42205042142 its reverse (24124050224), we get a palindrome (66329092366).

The spelling of 42205042142 in words is "forty-two billion, two hundred five million, forty-two thousand, one hundred forty-two".