2568669473 has 2 divisors, whose sum is σ = 2568669474. Its totient is φ = 2568669472.

The previous prime is 2568669449. The next prime is 2568669491. The reversal of 2568669473 is 3749668652.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2567246224 + 1423249 = 50668^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 2568669473 - 2¹² = 2568665377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2568669073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284334736 + 1284334737.

It is an arithmetic number, because the mean of its divisors is an integer number (1284334737).

Almost surely, 2^2568669473 is an apocalyptic number.

It is an amenable number.

2568669473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568669473 is an equidigital number, since it uses as much as digits as its factorization.

2568669473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 56.

The square root of 2568669473 is about 50682.0429047607. The cubic root of 2568669473 is about 1369.5232455870.

It can be divided in two parts, 25686 and 69473, that added together give a palindrome (95159).

The spelling of 2568669473 in words is "two billion, five hundred sixty-eight million, six hundred sixty-nine thousand, four hundred seventy-three".