42543443145 has 32 divisors (see below), whose sum is σ = 77803782912. Its totient is φ = 19445916672.

The previous prime is 42543443087. The next prime is 42543443161. The reversal of 42543443145 is 54134434524.

It is not a de Polignac number, because 42543443145 - 2⁸ = 42543442889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968989 + ... + 1011941.

It is an arithmetic number, because the mean of its divisors is an integer number (2431368216).

Almost surely, 2^42543443145 is an apocalyptic number.

It is an amenable number.

42543443145 is a deficient number, since it is larger than the sum of its proper divisors (35260339767).

42543443145 is a wasteful number, since it uses less digits than its factorization.

42543443145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52401.

The product of its digits is 460800, while the sum is 39.

Adding to 42543443145 its reverse (54134434524), we get a palindrome (96677877669).

The spelling of 42543443145 in words is "forty-two billion, five hundred forty-three million, four hundred forty-three thousand, one hundred forty-five".