28076065888 has 96 divisors (see below), whose sum is σ = 60950292480. Its totient is φ = 12649720320.

The previous prime is 28076065877. The next prime is 28076065903. The reversal of 28076065888 is 88856067082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8581693 + ... + 8584963.

It is an arithmetic number, because the mean of its divisors is an integer number (634898880).

Almost surely, 2^28076065888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28076065888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30475146240).

28076065888 is an abundant number, since it is smaller than the sum of its proper divisors (32874226592).

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

28076065888 is a wasteful number, since it uses less digits than its factorization.

28076065888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780 (or 3772 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 58.

The spelling of 28076065888 in words is "twenty-eight billion, seventy-six million, sixty-five thousand, eight hundred eighty-eight".