504546745622389 has 2 divisors, whose sum is σ = 504546745622390. Its totient is φ = 504546745622388.

The previous prime is 504546745622327. The next prime is 504546745622407. The reversal of 504546745622389 is 983226547645405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372081608199889 + 132465137422500 = 19289417^2 + 11509350^2 .

It is a cyclic number.

It is not a de Polignac number, because 504546745622389 - 2⁴¹ = 502347722366837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504546745622789) 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, 252273372811194 + 252273372811195.

It is an arithmetic number, because the mean of its divisors is an integer number (252273372811195).

Almost surely, 2^{504546745622389} is an apocalyptic number.

It is an amenable number.

504546745622389 is a deficient number, since it is larger than the sum of its proper divisors (1).

504546745622389 is an equidigital number, since it uses as much as digits as its factorization.

504546745622389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824000, while the sum is 70.

The spelling of 504546745622389 in words is "five hundred four trillion, five hundred forty-six billion, seven hundred forty-five million, six hundred twenty-two thousand, three hundred eighty-nine".