28840755773 has 2 divisors, whose sum is σ = 28840755774. Its totient is φ = 28840755772.

The previous prime is 28840755743. The next prime is 28840755847. The reversal of 28840755773 is 37755704882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23946634009 + 4894121764 = 154747^2 + 69958^2 .

It is a cyclic number.

It is not a de Polignac number, because 28840755773 - 2²² = 28836561469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28840755733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14420377886 + 14420377887.

It is an arithmetic number, because the mean of its divisors is an integer number (14420377887).

Almost surely, 2^28840755773 is an apocalyptic number.

It is an amenable number.

28840755773 is a deficient number, since it is larger than the sum of its proper divisors (1).

28840755773 is an equidigital number, since it uses as much as digits as its factorization.

28840755773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13171200, while the sum is 56.

The spelling of 28840755773 in words is "twenty-eight billion, eight hundred forty million, seven hundred fifty-five thousand, seven hundred seventy-three".