504514020344821 has 2 divisors, whose sum is σ = 504514020344822. Its totient is φ = 504514020344820.

The previous prime is 504514020344813. The next prime is 504514020344897. The reversal of 504514020344821 is 128443020415405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488358685147921 + 16155335196900 = 22098839^2 + 4019370^2 .

It is a cyclic number.

It is not a de Polignac number, because 504514020344821 - 2³ = 504514020344813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504514020374821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252257010172410 + 252257010172411.

It is an arithmetic number, because the mean of its divisors is an integer number (252257010172411).

Almost surely, 2^{504514020344821} is an apocalyptic number.

It is an amenable number.

504514020344821 is a deficient number, since it is larger than the sum of its proper divisors (1).

504514020344821 is an equidigital number, since it uses as much as digits as its factorization.

504514020344821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 614400, while the sum is 43.

The spelling of 504514020344821 in words is "five hundred four trillion, five hundred fourteen billion, twenty million, three hundred forty-four thousand, eight hundred twenty-one".