42389319697 has 4 divisors (see below), whose sum is σ = 42439844160. Its totient is φ = 42338795236.

The previous prime is 42389319611. The next prime is 42389319737. The reversal of 42389319697 is 79691398324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42389319697 - 2⁷ = 42389319569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42389319197) 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 in 3 ways as a sum of consecutive naturals, for example, 25260973 + ... + 25262650.

It is an arithmetic number, because the mean of its divisors is an integer number (10609961040).

Almost surely, 2^42389319697 is an apocalyptic number.

It is an amenable number.

42389319697 is a deficient number, since it is larger than the sum of its proper divisors (50524463).

42389319697 is an equidigital number, since it uses as much as digits as its factorization.

42389319697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50524462.

The product of its digits is 17635968, while the sum is 61.

The spelling of 42389319697 in words is "forty-two billion, three hundred eighty-nine million, three hundred nineteen thousand, six hundred ninety-seven".