28683438682 has 4 divisors (see below), whose sum is σ = 43025158026. Its totient is φ = 14341719340.

The previous prime is 28683438613. The next prime is 28683438689.

28683438682 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23734175481 + 4949263201 = 154059^2 + 70351^2 .

It is not an unprimeable number, because it can be changed into a prime (28683438689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7170859669 + ... + 7170859672.

Almost surely, 2^28683438682 is an apocalyptic number.

28683438682 is a deficient number, since it is larger than the sum of its proper divisors (14341719344).

28683438682 is a wasteful number, since it uses less digits than its factorization.

28683438682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14341719343.

The product of its digits is 21233664, while the sum is 58.

The spelling of 28683438682 in words is "twenty-eight billion, six hundred eighty-three million, four hundred thirty-eight thousand, six hundred eighty-two".