442638053542788 has 12 divisors (see below), whose sum is σ = 1032822124933200. Its totient is φ = 147546017847592.

The previous prime is 442638053542753. The next prime is 442638053542819. The reversal of 442638053542788 is 887245350836244.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18443252230938 + ... + 18443252230961.

It is an arithmetic number, because the mean of its divisors is an integer number (86068510411100).

Almost surely, 2^{442638053542788} is an apocalyptic number.

It is an amenable number.

442638053542788 is an abundant number, since it is smaller than the sum of its proper divisors (590184071390412).

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

442638053542788 is a wasteful number, since it uses less digits than its factorization.

442638053542788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36886504461906 (or 36886504461904 counting only the distinct ones).

The product of its (nonzero) digits is 1238630400, while the sum is 69.

The spelling of 442638053542788 in words is "four hundred forty-two trillion, six hundred thirty-eight billion, fifty-three million, five hundred forty-two thousand, seven hundred eighty-eight".