5206881576961 has 2 divisors, whose sum is σ = 5206881576962. Its totient is φ = 5206881576960.

The previous prime is 5206881576931. The next prime is 5206881576973. The reversal of 5206881576961 is 1696751886025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4867953846336 + 338927730625 = 2206344^2 + 582175^2 .

It is a cyclic number.

It is not a de Polignac number, because 5206881576961 - 2⁷ = 5206881576833 is a prime.

It is a super-2 number, since 2×5206881576961² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5206881576893 and 5206881576902.

It is not a weakly prime, because it can be changed into another prime (5206881576931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603440788480 + 2603440788481.

It is an arithmetic number, because the mean of its divisors is an integer number (2603440788481).

Almost surely, 2^{5206881576961} is an apocalyptic number.

It is an amenable number.

5206881576961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5206881576961 is an equidigital number, since it uses as much as digits as its factorization.

5206881576961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 64.

The spelling of 5206881576961 in words is "five trillion, two hundred six billion, eight hundred eighty-one million, five hundred seventy-six thousand, nine hundred sixty-one".