28341475186 has 4 divisors (see below), whose sum is σ = 42512212782. Its totient is φ = 14170737592.

The previous prime is 28341475181. The next prime is 28341475189. The reversal of 28341475186 is 68157414382.

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., 16270278025 + 12071197161 = 127555^2 + 109869^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28341475181) 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 as a sum of consecutive naturals, namely, 7085368795 + ... + 7085368798.

Almost surely, 2^28341475186 is an apocalyptic number.

28341475186 is a deficient number, since it is larger than the sum of its proper divisors (14170737596).

28341475186 is a wasteful number, since it uses less digits than its factorization.

28341475186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14170737595.

The product of its digits is 1290240, while the sum is 49.

The spelling of 28341475186 in words is "twenty-eight billion, three hundred forty-one million, four hundred seventy-five thousand, one hundred eighty-six".