504500821684 has 12 divisors (see below), whose sum is σ = 899534484324. Its totient is φ = 247490969024.

The previous prime is 504500821681. The next prime is 504500821697. The reversal of 504500821684 is 486128005405.

It can be written as a sum of positive squares in 2 ways, for example, as 283439112100 + 221061709584 = 532390^2 + 470172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 504500821684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504500821681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189860217 + ... + 1189860640.

It is an arithmetic number, because the mean of its divisors is an integer number (74961207027).

Almost surely, 2^504500821684 is an apocalyptic number.

It is an amenable number.

504500821684 is a deficient number, since it is larger than the sum of its proper divisors (395033662640).

504500821684 is a wasteful number, since it uses less digits than its factorization.

504500821684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379720914 (or 2379720912 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 504500821684 in words is "five hundred four billion, five hundred million, eight hundred twenty-one thousand, six hundred eighty-four".