504561826897 has 2 divisors, whose sum is σ = 504561826898. Its totient is φ = 504561826896.

The previous prime is 504561826849. The next prime is 504561826919. The reversal of 504561826897 is 798628165405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395319017536 + 109242809361 = 628744^2 + 330519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504561826897 is a prime.

It is not a weakly prime, because it can be changed into another prime (504561826297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252280913448 + 252280913449.

It is an arithmetic number, because the mean of its divisors is an integer number (252280913449).

Almost surely, 2^504561826897 is an apocalyptic number.

It is an amenable number.

504561826897 is a deficient number, since it is larger than the sum of its proper divisors (1).

504561826897 is an equidigital number, since it uses as much as digits as its factorization.

504561826897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 504561826897 in words is "five hundred four billion, five hundred sixty-one million, eight hundred twenty-six thousand, eight hundred ninety-seven".