28143833138 has 8 divisors (see below), whose sum is σ = 42220226160. Its totient is φ = 14070424420.

The previous prime is 28143833129. The next prime is 28143833173. The reversal of 28143833138 is 83133834182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722348 + ... + 760311.

It is an arithmetic number, because the mean of its divisors is an integer number (5277528270).

Almost surely, 2^28143833138 is an apocalyptic number.

28143833138 is a deficient number, since it is larger than the sum of its proper divisors (14076393022).

28143833138 is a wasteful number, since it uses less digits than its factorization.

28143833138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492152.

The product of its digits is 331776, while the sum is 44.

The spelling of 28143833138 in words is "twenty-eight billion, one hundred forty-three million, eight hundred thirty-three thousand, one hundred thirty-eight".