504652657399409 has 2 divisors, whose sum is σ = 504652657399410. Its totient is φ = 504652657399408.

The previous prime is 504652657399399. The next prime is 504652657399411. The reversal of 504652657399409 is 904993756256405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502770075826225 + 1882581573184 = 22422535^2 + 1372072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504652657399409 is a prime.

Together with 504652657399411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (504652657399469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252326328699704 + 252326328699705.

It is an arithmetic number, because the mean of its divisors is an integer number (252326328699705).

Almost surely, 2^{504652657399409} is an apocalyptic number.

It is an amenable number.

504652657399409 is a deficient number, since it is larger than the sum of its proper divisors (1).

504652657399409 is an equidigital number, since it uses as much as digits as its factorization.

504652657399409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496000, while the sum is 74.

The spelling of 504652657399409 in words is "five hundred four trillion, six hundred fifty-two billion, six hundred fifty-seven million, three hundred ninety-nine thousand, four hundred nine".