538556444904 has 64 divisors (see below), whose sum is σ = 1388872123200. Its totient is φ = 173897432064.

The previous prime is 538556444887. The next prime is 538556444953. The reversal of 538556444904 is 409444655835.

It is a happy 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, 1134289 + ... + 1537440.

It is an arithmetic number, because the mean of its divisors is an integer number (21701126925).

Almost surely, 2^538556444904 is an apocalyptic number.

It is an amenable number.

538556444904 is an abundant number, since it is smaller than the sum of its proper divisors (850315678296).

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

538556444904 is a wasteful number, since it uses less digits than its factorization.

538556444904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672002 (or 2671998 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 57.

The spelling of 538556444904 in words is "five hundred thirty-eight billion, five hundred fifty-six million, four hundred forty-four thousand, nine hundred four".