28140066212 has 12 divisors (see below), whose sum is σ = 49247458176. Its totient is φ = 14069363880.

The previous prime is 28140066193. The next prime is 28140066271. The reversal of 28140066212 is 21266004182.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 65864 + ... + 246207.

It is an arithmetic number, because the mean of its divisors is an integer number (4103954848).

Almost surely, 2^28140066212 is an apocalyptic number.

It is an amenable number.

28140066212 is a deficient number, since it is larger than the sum of its proper divisors (21107391964).

28140066212 is a wasteful number, since it uses less digits than its factorization.

28140066212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334618 (or 334616 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 28140066212 in words is "twenty-eight billion, one hundred forty million, sixty-six thousand, two hundred twelve".