42435366240517 has 2 divisors, whose sum is σ = 42435366240518. Its totient is φ = 42435366240516.

The previous prime is 42435366240503. The next prime is 42435366240557. The reversal of 42435366240517 is 71504266353424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40508464119876 + 1926902120641 = 6364626^2 + 1388129^2 .

It is a cyclic number.

It is not a de Polignac number, because 42435366240517 - 2⁷ = 42435366240389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42435366240557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21217683120258 + 21217683120259.

It is an arithmetic number, because the mean of its divisors is an integer number (21217683120259).

Almost surely, 2^{42435366240517} is an apocalyptic number.

It is an amenable number.

42435366240517 is a deficient number, since it is larger than the sum of its proper divisors (1).

42435366240517 is an equidigital number, since it uses as much as digits as its factorization.

42435366240517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14515200, while the sum is 52.

The spelling of 42435366240517 in words is "forty-two trillion, four hundred thirty-five billion, three hundred sixty-six million, two hundred forty thousand, five hundred seventeen".