42105245205 has 32 divisors (see below), whose sum is σ = 70329689856. Its totient is φ = 21469927424.

The previous prime is 42105245197. The next prime is 42105245209. The reversal of 42105245205 is 50254250124.

42105245205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42105245205 - 2³ = 42105245197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42105245209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 757339 + ... + 811031.

It is an arithmetic number, because the mean of its divisors is an integer number (2197802808).

Almost surely, 2^42105245205 is an apocalyptic number.

It is an amenable number.

42105245205 is a deficient number, since it is larger than the sum of its proper divisors (28224444651).

42105245205 is a wasteful number, since it uses less digits than its factorization.

42105245205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55997.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 42105245205 its reverse (50254250124), we get a palindrome (92359495329).

The spelling of 42105245205 in words is "forty-two billion, one hundred five million, two hundred forty-five thousand, two hundred five".