42521140524 has 24 divisors (see below), whose sum is σ = 99227305408. Its totient is φ = 14172097680.

The previous prime is 42521140517. The next prime is 42521140547. The reversal of 42521140524 is 42504112524.

It is a junction number, because it is equal to n+sod(n) for n = 42521140491 and 42521140500.

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, 89842 + ... + 305145.

Almost surely, 2^42521140524 is an apocalyptic number.

It is an amenable number.

42521140524 is an abundant number, since it is smaller than the sum of its proper divisors (56706164884).

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

42521140524 is a wasteful number, since it uses less digits than its factorization.

42521140524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403965 (or 403963 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 42521140524 in words is "forty-two billion, five hundred twenty-one million, one hundred forty thousand, five hundred twenty-four".