42289719523 has 2 divisors, whose sum is σ = 42289719524. Its totient is φ = 42289719522.

The previous prime is 42289719497. The next prime is 42289719553. The reversal of 42289719523 is 32591798224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42289719523 - 2⁵ = 42289719491 is a prime.

It is not a weakly prime, because it can be changed into another prime (42289719553) 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, 21144859761 + 21144859762.

It is an arithmetic number, because the mean of its divisors is an integer number (21144859762).

Almost surely, 2^42289719523 is an apocalyptic number.

42289719523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42289719523 is an equidigital number, since it uses as much as digits as its factorization.

42289719523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The spelling of 42289719523 in words is "forty-two billion, two hundred eighty-nine million, seven hundred nineteen thousand, five hundred twenty-three".