504323116288821 has 8 divisors (see below), whose sum is σ = 747145357464960. Its totient is φ = 336215410859196.

The previous prime is 504323116288819. The next prime is 504323116288877. The reversal of 504323116288821 is 128882611323405.

It is a happy number.

504323116288821 is a `hidden beast` number, since 5 + 0 + 4 + 3 + 2 + 3 + 1 + 1 + 628 + 8 + 8 + 2 + 1 = 666.

It is not a de Polignac number, because 504323116288821 - 2¹ = 504323116288819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504323316288821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9339316968285 + ... + 9339316968338.

It is an arithmetic number, because the mean of its divisors is an integer number (93393169683120).

Almost surely, 2^{504323116288821} is an apocalyptic number.

It is an amenable number.

504323116288821 is a deficient number, since it is larger than the sum of its proper divisors (242822241176139).

504323116288821 is a wasteful number, since it uses less digits than its factorization.

504323116288821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18678633936632 (or 18678633936626 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 504323116288821 in words is "five hundred four trillion, three hundred twenty-three billion, one hundred sixteen million, two hundred eighty-eight thousand, eight hundred twenty-one".