28055852836 has 12 divisors (see below), whose sum is σ = 53561173680. Its totient is φ = 12752660360.

The previous prime is 28055852791. The next prime is 28055852837. The reversal of 28055852836 is 63825855082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28055852837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318816466 + ... + 318816553.

It is an arithmetic number, because the mean of its divisors is an integer number (4463431140).

Almost surely, 2^28055852836 is an apocalyptic number.

It is an amenable number.

28055852836 is a deficient number, since it is larger than the sum of its proper divisors (25505320844).

28055852836 is a wasteful number, since it uses less digits than its factorization.

28055852836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637633034 (or 637633032 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 52.

The spelling of 28055852836 in words is "twenty-eight billion, fifty-five million, eight hundred fifty-two thousand, eight hundred thirty-six".