28563060641 has 2 divisors, whose sum is σ = 28563060642. Its totient is φ = 28563060640.

The previous prime is 28563060613. The next prime is 28563060649. The reversal of 28563060641 is 14606036582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18933760000 + 9629300641 = 137600^2 + 98129^2 .

It is a cyclic number.

It is not a de Polignac number, because 28563060641 - 2¹⁰ = 28563059617 is a prime.

It is not a weakly prime, because it can be changed into another prime (28563060649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14281530320 + 14281530321.

It is an arithmetic number, because the mean of its divisors is an integer number (14281530321).

Almost surely, 2^28563060641 is an apocalyptic number.

It is an amenable number.

28563060641 is a deficient number, since it is larger than the sum of its proper divisors (1).

28563060641 is an equidigital number, since it uses as much as digits as its factorization.

28563060641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 28563060641 in words is "twenty-eight billion, five hundred sixty-three million, sixty thousand, six hundred forty-one".