28896448667 has 2 divisors, whose sum is σ = 28896448668. Its totient is φ = 28896448666.

The previous prime is 28896448657. The next prime is 28896448681. The reversal of 28896448667 is 76684469882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28896448667 - 2³⁰ = 27822706843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28896448597 and 28896448606.

It is not a weakly prime, because it can be changed into another prime (28896448657) 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, 14448224333 + 14448224334.

It is an arithmetic number, because the mean of its divisors is an integer number (14448224334).

Almost surely, 2^28896448667 is an apocalyptic number.

28896448667 is a deficient number, since it is larger than the sum of its proper divisors (1).

28896448667 is an equidigital number, since it uses as much as digits as its factorization.

28896448667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222953472, while the sum is 68.

The spelling of 28896448667 in words is "twenty-eight billion, eight hundred ninety-six million, four hundred forty-eight thousand, six hundred sixty-seven".