42817409959 has 2 divisors, whose sum is σ = 42817409960. Its totient is φ = 42817409958.

The previous prime is 42817409953. The next prime is 42817410173. The reversal of 42817409959 is 95990471824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42817409959 - 2¹¹ = 42817407911 is a prime.

It is a super-4 number, since 4×42817409959⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42817409953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21408704979 + 21408704980.

It is an arithmetic number, because the mean of its divisors is an integer number (21408704980).

Almost surely, 2^42817409959 is an apocalyptic number.

42817409959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42817409959 is an equidigital number, since it uses as much as digits as its factorization.

42817409959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 42817409959 in words is "forty-two billion, eight hundred seventeen million, four hundred nine thousand, nine hundred fifty-nine".