28849844459 has 2 divisors, whose sum is σ = 28849844460. Its totient is φ = 28849844458.

The previous prime is 28849844437. The next prime is 28849844483. The reversal of 28849844459 is 95444894882.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28849844459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28849844395 and 28849844404.

It is not a weakly prime, because it can be changed into another prime (28845844459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14424922229 + 14424922230.

It is an arithmetic number, because the mean of its divisors is an integer number (14424922230).

Almost surely, 2^28849844459 is an apocalyptic number.

28849844459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28849844459 is an equidigital number, since it uses as much as digits as its factorization.

28849844459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 106168320, while the sum is 65.

The spelling of 28849844459 in words is "twenty-eight billion, eight hundred forty-nine million, eight hundred forty-four thousand, four hundred fifty-nine".