42353644660 has 24 divisors (see below), whose sum is σ = 89439547680. Its totient is φ = 16846811424.

The previous prime is 42353644657. The next prime is 42353644679. The reversal of 42353644660 is 6644635324.

It is a happy number.

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, 5911734 + ... + 5918893.

It is an arithmetic number, because the mean of its divisors is an integer number (3726647820).

Almost surely, 2^42353644660 is an apocalyptic number.

It is an amenable number.

42353644660 is an abundant number, since it is smaller than the sum of its proper divisors (47085903020).

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

42353644660 is a wasteful number, since it uses less digits than its factorization.

42353644660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830815 (or 11830813 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 42353644660 in words is "forty-two billion, three hundred fifty-three million, six hundred forty-four thousand, six hundred sixty".