42544222142 has 4 divisors (see below), whose sum is σ = 63816333216. Its totient is φ = 21272111070.

The previous prime is 42544222121. The next prime is 42544222159. The reversal of 42544222142 is 24122244524.

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

It is a junction number, because it is equal to n+sod(n) for n = 42544222099 and 42544222108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10636055534 + ... + 10636055537.

It is an arithmetic number, because the mean of its divisors is an integer number (15954083304).

Almost surely, 2^42544222142 is an apocalyptic number.

42544222142 is a deficient number, since it is larger than the sum of its proper divisors (21272111074).

42544222142 is a wasteful number, since it uses less digits than its factorization.

42544222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21272111073.

The product of its digits is 40960, while the sum is 32.

Adding to 42544222142 its reverse (24122244524), we get a palindrome (66666466666).

The spelling of 42544222142 in words is "forty-two billion, five hundred forty-four million, two hundred twenty-two thousand, one hundred forty-two".