28509295963 has 2 divisors, whose sum is σ = 28509295964. Its totient is φ = 28509295962.

The previous prime is 28509295951. The next prime is 28509296201. The reversal of 28509295963 is 36959290582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28509295963 - 2⁵ = 28509295931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28509295898 and 28509295907.

It is not a weakly prime, because it can be changed into another prime (28509295933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14254647981 + 14254647982.

It is an arithmetic number, because the mean of its divisors is an integer number (14254647982).

Almost surely, 2^28509295963 is an apocalyptic number.

28509295963 is a deficient number, since it is larger than the sum of its proper divisors (1).

28509295963 is an equidigital number, since it uses as much as digits as its factorization.

28509295963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 28509295963 in words is "twenty-eight billion, five hundred nine million, two hundred ninety-five thousand, nine hundred sixty-three".