28548787577 has 2 divisors, whose sum is σ = 28548787578. Its totient is φ = 28548787576.

The previous prime is 28548787543. The next prime is 28548787591. The reversal of 28548787577 is 77578784582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26453070736 + 2095716841 = 162644^2 + 45779^2 .

It is a cyclic number.

It is not a de Polignac number, because 28548787577 - 2⁸ = 28548787321 is a prime.

It is not a weakly prime, because it can be changed into another prime (28548780577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14274393788 + 14274393789.

It is an arithmetic number, because the mean of its divisors is an integer number (14274393789).

Almost surely, 2^28548787577 is an apocalyptic number.

It is an amenable number.

28548787577 is a deficient number, since it is larger than the sum of its proper divisors (1).

28548787577 is an equidigital number, since it uses as much as digits as its factorization.

28548787577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 245862400, while the sum is 68.

The spelling of 28548787577 in words is "twenty-eight billion, five hundred forty-eight million, seven hundred eighty-seven thousand, five hundred seventy-seven".