42105707043 has 4 divisors (see below), whose sum is σ = 56140942728. Its totient is φ = 28070471360.

The previous prime is 42105706969. The next prime is 42105707047. The reversal of 42105707043 is 34070750124.

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

It is a cyclic number.

It is not a de Polignac number, because 42105707043 - 2²⁹ = 41568836131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42105706995 and 42105707013.

It is not an unprimeable number, because it can be changed into a prime (42105707047) 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, 7017617838 + ... + 7017617843.

It is an arithmetic number, because the mean of its divisors is an integer number (14035235682).

Almost surely, 2^42105707043 is an apocalyptic number.

42105707043 is a deficient number, since it is larger than the sum of its proper divisors (14035235685).

42105707043 is a wasteful number, since it uses less digits than its factorization.

42105707043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14035235684.

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 42105707043 in words is "forty-two billion, one hundred five million, seven hundred seven thousand, forty-three".