28664646682 has 32 divisors (see below), whose sum is σ = 50759746560. Its totient is φ = 11880311040.

The previous prime is 28664646677. The next prime is 28664646709.

28664646682 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 624048 + ... + 668404.

It is an arithmetic number, because the mean of its divisors is an integer number (1586242080).

Almost surely, 2^28664646682 is an apocalyptic number.

28664646682 is a deficient number, since it is larger than the sum of its proper divisors (22095099878).

28664646682 is a wasteful number, since it uses less digits than its factorization.

28664646682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45886.

The product of its digits is 31850496, while the sum is 58.

The spelling of 28664646682 in words is "twenty-eight billion, six hundred sixty-four million, six hundred forty-six thousand, six hundred eighty-two".