42404113105 has 4 divisors (see below), whose sum is σ = 50884935732. Its totient is φ = 33923290480.

The previous prime is 42404113097. The next prime is 42404113111. The reversal of 42404113105 is 50131140424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25905224401 + 16498888704 = 160951^2 + 128448^2 .

It is not a de Polignac number, because 42404113105 - 2³ = 42404113097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42404113105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4240411306 + ... + 4240411315.

It is an arithmetic number, because the mean of its divisors is an integer number (12721233933).

Almost surely, 2^42404113105 is an apocalyptic number.

It is an amenable number.

42404113105 is a deficient number, since it is larger than the sum of its proper divisors (8480822627).

42404113105 is an equidigital number, since it uses as much as digits as its factorization.

42404113105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8480822626.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 42404113105 its reverse (50131140424), we get a palindrome (92535253529).

The spelling of 42404113105 in words is "forty-two billion, four hundred four million, one hundred thirteen thousand, one hundred five".