504821393361 has 40 divisors (see below), whose sum is σ = 796969404000. Its totient is φ = 317564064000.

The previous prime is 504821393347. The next prime is 504821393371. The reversal of 504821393361 is 163393128405.

504821393361 is a `hidden beast` number, since 5 + 0 + 482 + 139 + 3 + 36 + 1 = 666.

It is not a de Polignac number, because 504821393361 - 2⁷ = 504821393233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (504821393371) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 267136 + ... + 1039713.

It is an arithmetic number, because the mean of its divisors is an integer number (19924235100).

Almost surely, 2^504821393361 is an apocalyptic number.

It is an amenable number.

504821393361 is a deficient number, since it is larger than the sum of its proper divisors (292148010639).

504821393361 is a wasteful number, since it uses less digits than its factorization.

504821393361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307131 (or 1307122 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 504821393361 in words is "five hundred four billion, eight hundred twenty-one million, three hundred ninety-three thousand, three hundred sixty-one".