42124412017 has 2 divisors, whose sum is σ = 42124412018. Its totient is φ = 42124412016.

The previous prime is 42124411997. The next prime is 42124412041. The reversal of 42124412017 is 71021442124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41828021361 + 296390656 = 204519^2 + 17216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42124412017 is a prime.

It is not a weakly prime, because it can be changed into another prime (42124712017) 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, 21062206008 + 21062206009.

It is an arithmetic number, because the mean of its divisors is an integer number (21062206009).

Almost surely, 2^42124412017 is an apocalyptic number.

It is an amenable number.

42124412017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42124412017 is an equidigital number, since it uses as much as digits as its factorization.

42124412017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 28.

The spelling of 42124412017 in words is "forty-two billion, one hundred twenty-four million, four hundred twelve thousand, seventeen".