42016542143 has 4 divisors (see below), whose sum is σ = 42021099120. Its totient is φ = 42011985168.

The previous prime is 42016542119. The next prime is 42016542173. The reversal of 42016542143 is 34124561024.

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 42016542143 - 2¹⁸ = 42016279999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42016542173) 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 in 3 ways as a sum of consecutive naturals, for example, 2264630 + ... + 2283107.

It is an arithmetic number, because the mean of its divisors is an integer number (10505274780).

Almost surely, 2^42016542143 is an apocalyptic number.

42016542143 is a deficient number, since it is larger than the sum of its proper divisors (4556977).

42016542143 is an equidigital number, since it uses as much as digits as its factorization.

42016542143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556976.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 42016542143 in words is "forty-two billion, sixteen million, five hundred forty-two thousand, one hundred forty-three".