28871863422 has 16 divisors (see below), whose sum is σ = 57820015632. Its totient is φ = 9611239680.

The previous prime is 28871863409. The next prime is 28871863439. The reversal of 28871863422 is 22436817882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173779 + ... + 3182862.

It is an arithmetic number, because the mean of its divisors is an integer number (3613750977).

Almost surely, 2^28871863422 is an apocalyptic number.

28871863422 is an abundant number, since it is smaller than the sum of its proper divisors (28948152210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28871863422 is a wasteful number, since it uses less digits than its factorization.

28871863422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357403.

The product of its digits is 2064384, while the sum is 51.

The spelling of 28871863422 in words is "twenty-eight billion, eight hundred seventy-one million, eight hundred sixty-three thousand, four hundred twenty-two".