42039362042 has 4 divisors (see below), whose sum is σ = 63059043066. Its totient is φ = 21019681020.

The previous prime is 42039362023. The next prime is 42039362047. The reversal of 42039362042 is 24026393024.

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., 33084335881 + 8955026161 = 181891^2 + 94631^2 .

It is a super-3 number, since 3×42039362042³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42039361993 and 42039362011.

It is not an unprimeable number, because it can be changed into a prime (42039362047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10509840509 + ... + 10509840512.

Almost surely, 2^42039362042 is an apocalyptic number.

42039362042 is a deficient number, since it is larger than the sum of its proper divisors (21019681024).

42039362042 is a wasteful number, since it uses less digits than its factorization.

42039362042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21019681023.

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 42039362042 in words is "forty-two billion, thirty-nine million, three hundred sixty-two thousand, forty-two".