28666733766682 has 16 divisors (see below), whose sum is σ = 46925494387200. Its totient is φ = 13025807508640.

The previous prime is 28666733766673. The next prime is 28666733766683.

28666733766682 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28666733766682² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28666733766599 and 28666733766608.

It is not an unprimeable number, because it can be changed into a prime (28666733766683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226236307 + ... + 226362982.

It is an arithmetic number, because the mean of its divisors is an integer number (2932843399200).

Almost surely, 2^{28666733766682} is an apocalyptic number.

28666733766682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28666733766682 is a deficient number, since it is larger than the sum of its proper divisors (18258760620518).

28666733766682 is a wasteful number, since it uses less digits than its factorization.

28666733766682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452602181.

The product of its digits is 5267275776, while the sum is 76.

The spelling of 28666733766682 in words is "twenty-eight trillion, six hundred sixty-six billion, seven hundred thirty-three million, seven hundred sixty-six thousand, six hundred eighty-two".