28668942214 has 16 divisors (see below), whose sum is σ = 47797963920. Its totient is φ = 12785462560.

The previous prime is 28668942209. The next prime is 28668942221. The reversal of 28668942214 is 41224986682.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 12292549 + ... + 12294880.

It is an arithmetic number, because the mean of its divisors is an integer number (2987372745).

Almost surely, 2^28668942214 is an apocalyptic number.

28668942214 is a deficient number, since it is larger than the sum of its proper divisors (19129021706).

28668942214 is a wasteful number, since it uses less digits than its factorization.

28668942214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24587495.

The product of its digits is 2654208, while the sum is 52.

The spelling of 28668942214 in words is "twenty-eight billion, six hundred sixty-eight million, nine hundred forty-two thousand, two hundred fourteen".