42444432553142 has 4 divisors (see below), whose sum is σ = 63666648829716. Its totient is φ = 21222216276570.

The previous prime is 42444432553093. The next prime is 42444432553241. The reversal of 42444432553142 is 24135523444424.

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

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, 10611108138284 + ... + 10611108138287.

It is an arithmetic number, because the mean of its divisors is an integer number (15916662207429).

Almost surely, 2^{42444432553142} is an apocalyptic number.

42444432553142 is a deficient number, since it is larger than the sum of its proper divisors (21222216276574).

42444432553142 is a wasteful number, since it uses less digits than its factorization.

42444432553142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222216276573.

The product of its digits is 7372800, while the sum is 47.

Adding to 42444432553142 its reverse (24135523444424), we get a palindrome (66579955997566).

The spelling of 42444432553142 in words is "forty-two trillion, four hundred forty-four billion, four hundred thirty-two million, five hundred fifty-three thousand, one hundred forty-two".