28886189960 has 32 divisors (see below), whose sum is σ = 66095524800. Its totient is φ = 11358636480.

The previous prime is 28886189909. The next prime is 28886189963. The reversal of 28886189960 is 6998168882.

It is not an unprimeable number, because it can be changed into a prime (28886189963) 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, 6117596 + ... + 6122315.

It is an arithmetic number, because the mean of its divisors is an integer number (2065485150).

Almost surely, 2^28886189960 is an apocalyptic number.

28886189960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28886189960 is an abundant number, since it is smaller than the sum of its proper divisors (37209334840).

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

28886189960 is a wasteful number, since it uses less digits than its factorization.

28886189960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12239981 (or 12239977 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 65.

The spelling of 28886189960 in words is "twenty-eight billion, eight hundred eighty-six million, one hundred eighty-nine thousand, nine hundred sixty".