42204142439 has 2 divisors, whose sum is σ = 42204142440. Its totient is φ = 42204142438.

The previous prime is 42204142433. The next prime is 42204142457. The reversal of 42204142439 is 93424140224.

It is a happy number.

42204142439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42204142439 - 2⁴ = 42204142423 is a prime.

It is a super-2 number, since 2×42204142439² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42204142399 and 42204142408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42204142433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102071219 + 21102071220.

It is an arithmetic number, because the mean of its divisors is an integer number (21102071220).

Almost surely, 2^42204142439 is an apocalyptic number.

42204142439 is a deficient number, since it is larger than the sum of its proper divisors (1).

42204142439 is an equidigital number, since it uses as much as digits as its factorization.

42204142439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 42204142439 in words is "forty-two billion, two hundred four million, one hundred forty-two thousand, four hundred thirty-nine".