42543234524 has 144 divisors (see below), whose sum is σ = 91145134080. Its totient is φ = 17303569920.

The previous prime is 42543234397. The next prime is 42543234551.

42543234524 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126240884 + ... + 126241220.

It is an arithmetic number, because the mean of its divisors is an integer number (632952320).

Almost surely, 2^42543234524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42543234524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45572567040).

42543234524 is an abundant number, since it is smaller than the sum of its proper divisors (48601899556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42543234524 is a wasteful number, since it uses less digits than its factorization.

42543234524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 719 counting only the distinct ones).

The product of its digits is 460800, while the sum is 38.

The spelling of 42543234524 in words is "forty-two billion, five hundred forty-three million, two hundred thirty-four thousand, five hundred twenty-four".