504700808681 has 2 divisors, whose sum is σ = 504700808682. Its totient is φ = 504700808680.

The previous prime is 504700808663. The next prime is 504700808747. The reversal of 504700808681 is 186808007405.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316171168681 + 188529640000 = 562291^2 + 434200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504700808681 is a prime.

It is a super-2 number, since 2×504700808681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (504700808641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252350404340 + 252350404341.

It is an arithmetic number, because the mean of its divisors is an integer number (252350404341).

Almost surely, 2^504700808681 is an apocalyptic number.

It is an amenable number.

504700808681 is a deficient number, since it is larger than the sum of its proper divisors (1).

504700808681 is an equidigital number, since it uses as much as digits as its factorization.

504700808681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 504700808681 in words is "five hundred four billion, seven hundred million, eight hundred eight thousand, six hundred eighty-one".