42425043317 has 2 divisors, whose sum is σ = 42425043318. Its totient is φ = 42425043316.

The previous prime is 42425043289. The next prime is 42425043343. The reversal of 42425043317 is 71334052424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39919640401 + 2505402916 = 199799^2 + 50054^2 .

It is a cyclic number.

It is not a de Polignac number, because 42425043317 - 2⁸ = 42425043061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42425043917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21212521658 + 21212521659.

It is an arithmetic number, because the mean of its divisors is an integer number (21212521659).

Almost surely, 2^42425043317 is an apocalyptic number.

It is an amenable number.

42425043317 is a deficient number, since it is larger than the sum of its proper divisors (1).

42425043317 is an equidigital number, since it uses as much as digits as its factorization.

42425043317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 42425043317 in words is "forty-two billion, four hundred twenty-five million, forty-three thousand, three hundred seventeen".