28878016960 has 336 divisors, whose sum is σ = 79879131072. Its totient is φ = 9904128000.

The previous prime is 28878016949. The next prime is 28878017017. The reversal of 28878016960 is 6961087882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92855205 + ... + 92855515.

Almost surely, 2^28878016960 is an apocalyptic number.

28878016960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28878016960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39939565536).

28878016960 is an abundant number, since it is smaller than the sum of its proper divisors (51001114112).

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

28878016960 is a wasteful number, since it uses less digits than its factorization.

28878016960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 28878016960 in words is "twenty-eight billion, eight hundred seventy-eight million, sixteen thousand, nine hundred sixty".