28866771158 has 16 divisors (see below), whose sum is σ = 44799972480. Its totient is φ = 13933596096.

The previous prime is 28866771151. The next prime is 28866771209. The reversal of 28866771158 is 85117766882.

It is a junction number, because it is equal to n+sod(n) for n = 28866771097 and 28866771106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28866771151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396635 + ... + 463737.

It is an arithmetic number, because the mean of its divisors is an integer number (2799998280).

Almost surely, 2^28866771158 is an apocalyptic number.

28866771158 is a deficient number, since it is larger than the sum of its proper divisors (15933201322).

28866771158 is a wasteful number, since it uses less digits than its factorization.

28866771158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74551.

The product of its digits is 9031680, while the sum is 59.

The spelling of 28866771158 in words is "twenty-eight billion, eight hundred sixty-six million, seven hundred seventy-one thousand, one hundred fifty-eight".