28081675436 has 6 divisors (see below), whose sum is σ = 49142932020. Its totient is φ = 14040837716.

The previous prime is 28081675429. The next prime is 28081675439. The reversal of 28081675436 is 63457618082.

It is not an unprimeable number, because it can be changed into a prime (28081675439) 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, 3510209426 + ... + 3510209433.

It is an arithmetic number, because the mean of its divisors is an integer number (8190488670).

Almost surely, 2^28081675436 is an apocalyptic number.

It is an amenable number.

28081675436 is a deficient number, since it is larger than the sum of its proper divisors (21061256584).

28081675436 is a wasteful number, since it uses less digits than its factorization.

28081675436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020418863 (or 7020418861 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 28081675436 in words is "twenty-eight billion, eighty-one million, six hundred seventy-five thousand, four hundred thirty-six".