28656795865676 has 24 divisors (see below), whose sum is σ = 54842189944080. Its totient is φ = 12993968332800.

The previous prime is 28656795865673. The next prime is 28656795865679. The reversal of 28656795865676 is 67656859765682.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28656795865673) and next prime (28656795865679).

It is not an unprimeable number, because it can be changed into a prime (28656795865673) 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 7 ways as a sum of consecutive naturals, for example, 796181045 + ... + 796217036.

It is an arithmetic number, because the mean of its divisors is an integer number (2285091247670).

Almost surely, 2^{28656795865676} is an apocalyptic number.

It is an amenable number.

28656795865676 is a deficient number, since it is larger than the sum of its proper divisors (26185394078404).

28656795865676 is a wasteful number, since it uses less digits than its factorization.

28656795865676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592398505 (or 1592398503 counting only the distinct ones).

The product of its digits is 54867456000, while the sum is 86.

The spelling of 28656795865676 in words is "twenty-eight trillion, six hundred fifty-six billion, seven hundred ninety-five million, eight hundred sixty-five thousand, six hundred seventy-six".