28548606771 has 12 divisors (see below), whose sum is σ = 41509970320. Its totient is φ = 18906361200.

The previous prime is 28548606683. The next prime is 28548606781. The reversal of 28548606771 is 17760684582.

28548606771 is a `hidden beast` number, since 28 + 5 + 4 + 8 + 606 + 7 + 7 + 1 = 666.

It is not a de Polignac number, because 28548606771 - 2¹⁰ = 28548605747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28548606781) 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 in 11 ways as a sum of consecutive naturals, for example, 10502176 + ... + 10504893.

Almost surely, 2^28548606771 is an apocalyptic number.

28548606771 is a deficient number, since it is larger than the sum of its proper divisors (12961363549).

28548606771 is a wasteful number, since it uses less digits than its factorization.

28548606771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21007226 (or 21007223 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 28548606771 in words is "twenty-eight billion, five hundred forty-eight million, six hundred six thousand, seven hundred seventy-one".