42543634524 has 24 divisors (see below), whose sum is σ = 99925891968. Its totient is φ = 14087295600.

The previous prime is 42543634519. The next prime is 42543634531.

It is a happy number.

42543634524 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11737602 + ... + 11741225.

It is an arithmetic number, because the mean of its divisors is an integer number (4163578832).

Almost surely, 2^42543634524 is an apocalyptic number.

It is an amenable number.

42543634524 is an abundant number, since it is smaller than the sum of its proper divisors (57382257444).

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

42543634524 is a wasteful number, since it uses less digits than its factorization.

42543634524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23478985 (or 23478983 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 42.

The spelling of 42543634524 in words is "forty-two billion, five hundred forty-three million, six hundred thirty-four thousand, five hundred twenty-four".