42504563042 has 4 divisors (see below), whose sum is σ = 63756844566. Its totient is φ = 21252281520.

The previous prime is 42504563041. The next prime is 42504563053. The reversal of 42504563042 is 24036540524.

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

It can be written as a sum of positive squares in only one way, i.e., 40835922241 + 1668640801 = 202079^2 + 40849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42504562993 and 42504563011.

It is not an unprimeable number, because it can be changed into a prime (42504563041) 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 as a sum of consecutive naturals, namely, 10626140759 + ... + 10626140762.

Almost surely, 2^42504563042 is an apocalyptic number.

42504563042 is a deficient number, since it is larger than the sum of its proper divisors (21252281524).

42504563042 is a wasteful number, since it uses less digits than its factorization.

42504563042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21252281523.

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 42504563042 in words is "forty-two billion, five hundred four million, five hundred sixty-three thousand, forty-two".