42491209524 has 48 divisors (see below), whose sum is σ = 101598779520. Its totient is φ = 13813596160.

The previous prime is 42491209517. The next prime is 42491209559. The reversal of 42491209524 is 42590219424.

42491209524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1624897 + ... + 1650839.

It is an arithmetic number, because the mean of its divisors is an integer number (2116641240).

Almost surely, 2^42491209524 is an apocalyptic number.

It is an amenable number.

42491209524 is an abundant number, since it is smaller than the sum of its proper divisors (59107569996).

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

42491209524 is a wasteful number, since it uses less digits than its factorization.

42491209524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29320 (or 29318 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 42491209524 in words is "forty-two billion, four hundred ninety-one million, two hundred nine thousand, five hundred twenty-four".