42435366244643 has 2 divisors, whose sum is σ = 42435366244644. Its totient is φ = 42435366244642.

The previous prime is 42435366244591. The next prime is 42435366244717. The reversal of 42435366244643 is 34644266353424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42435366244643 - 2³² = 42431071277347 is a prime.

It is not a weakly prime, because it can be changed into another prime (42435366240643) 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, 21217683122321 + 21217683122322.

It is an arithmetic number, because the mean of its divisors is an integer number (21217683122322).

Almost surely, 2^{42435366244643} is an apocalyptic number.

42435366244643 is a deficient number, since it is larger than the sum of its proper divisors (1).

42435366244643 is an equidigital number, since it uses as much as digits as its factorization.

42435366244643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119439360, while the sum is 56.

The spelling of 42435366244643 in words is "forty-two trillion, four hundred thirty-five billion, three hundred sixty-six million, two hundred forty-four thousand, six hundred forty-three".