42024800042 has 4 divisors (see below), whose sum is σ = 63037200066. Its totient is φ = 21012400020.

The previous prime is 42024800009. The next prime is 42024800057. The reversal of 42024800042 is 24000842024.

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., 29165466841 + 12859333201 = 170779^2 + 113399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42024799984 and 42024800020.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506200009 + ... + 10506200012.

Almost surely, 2^42024800042 is an apocalyptic number.

42024800042 is a deficient number, since it is larger than the sum of its proper divisors (21012400024).

42024800042 is a wasteful number, since it uses less digits than its factorization.

42024800042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21012400023.

The product of its (nonzero) digits is 4096, while the sum is 26.

The spelling of 42024800042 in words is "forty-two billion, twenty-four million, eight hundred thousand, forty-two".