538782205682 has 54 divisors (see below), whose sum is σ = 958878167373. Its totient is φ = 226387993104.

The previous prime is 538782205651. The next prime is 538782205697. The reversal of 538782205682 is 286502287835.

It can be written as a sum of positive squares in 2 ways, for example, as 511066282321 + 27715923361 = 714889^2 + 166481^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=519029.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 385118819 + ... + 385120217.

Almost surely, 2^538782205682 is an apocalyptic number.

538782205682 is a deficient number, since it is larger than the sum of its proper divisors (420095961691).

538782205682 is an frugal number, since it uses more digits than its factorization.

538782205682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 538782205682 in words is "five hundred thirty-eight billion, seven hundred eighty-two million, two hundred five thousand, six hundred eighty-two".