28318701682 has 4 divisors (see below), whose sum is σ = 42478052526. Its totient is φ = 14159350840.

The previous prime is 28318701673. The next prime is 28318701683. The reversal of 28318701682 is 28610781382.

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., 24573384081 + 3745317601 = 156759^2 + 61199^2 .

It is not an unprimeable number, because it can be changed into a prime (28318701683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7079675419 + ... + 7079675422.

Almost surely, 2^28318701682 is an apocalyptic number.

28318701682 is a deficient number, since it is larger than the sum of its proper divisors (14159350844).

28318701682 is a wasteful number, since it uses less digits than its factorization.

28318701682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14159350843.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 28318701682 in words is "twenty-eight billion, three hundred eighteen million, seven hundred one thousand, six hundred eighty-two".