28452464917 has 2 divisors, whose sum is σ = 28452464918. Its totient is φ = 28452464916.

The previous prime is 28452464867. The next prime is 28452464923. The reversal of 28452464917 is 71946425482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18945044881 + 9507420036 = 137641^2 + 97506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28452464917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28452474917) 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, 14226232458 + 14226232459.

It is an arithmetic number, because the mean of its divisors is an integer number (14226232459).

Almost surely, 2^28452464917 is an apocalyptic number.

It is an amenable number.

28452464917 is a deficient number, since it is larger than the sum of its proper divisors (1).

28452464917 is an equidigital number, since it uses as much as digits as its factorization.

28452464917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The spelling of 28452464917 in words is "twenty-eight billion, four hundred fifty-two million, four hundred sixty-four thousand, nine hundred seventeen".