28830808649 has 2 divisors, whose sum is σ = 28830808650. Its totient is φ = 28830808648.

The previous prime is 28830808631. The next prime is 28830808663. The reversal of 28830808649 is 94680803882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27724581049 + 1106227600 = 166507^2 + 33260^2 .

It is a cyclic number.

It is not a de Polignac number, because 28830808649 - 2⁸ = 28830808393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28830808594 and 28830808603.

It is not a weakly prime, because it can be changed into another prime (28830888649) 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, 14415404324 + 14415404325.

It is an arithmetic number, because the mean of its divisors is an integer number (14415404325).

Almost surely, 2^28830808649 is an apocalyptic number.

It is an amenable number.

28830808649 is a deficient number, since it is larger than the sum of its proper divisors (1).

28830808649 is an equidigital number, since it uses as much as digits as its factorization.

28830808649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 28830808649 in words is "twenty-eight billion, eight hundred thirty million, eight hundred eight thousand, six hundred forty-nine".