28171031068 has 48 divisors (see below), whose sum is σ = 50324025024. Its totient is φ = 13796536320.

The previous prime is 28171031059. The next prime is 28171031089. The reversal of 28171031068 is 86013017182.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 19020888 + ... + 19022368.

It is an arithmetic number, because the mean of its divisors is an integer number (1048417188).

Almost surely, 2^28171031068 is an apocalyptic number.

It is an amenable number.

28171031068 is a deficient number, since it is larger than the sum of its proper divisors (22152993956).

28171031068 is a wasteful number, since it uses less digits than its factorization.

28171031068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 28171031068 in words is "twenty-eight billion, one hundred seventy-one million, thirty-one thousand, sixty-eight".