28536886080 has 168 divisors, whose sum is σ = 98471702472. Its totient is φ = 7585284096.

The previous prime is 28536886073. The next prime is 28536886093. The reversal of 28536886080 is 8068863582.

28536886080 is a `hidden beast` number, since 28 + 5 + 3 + 6 + 8 + 8 + 608 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38044224 + 28498841856 = 6168^2 + 168816^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 885612 + ... + 917268.

Almost surely, 2^28536886080 is an apocalyptic number.

28536886080 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 28536886080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49235851236).

28536886080 is an abundant number, since it is smaller than the sum of its proper divisors (69934816392).

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

28536886080 is a wasteful number, since it uses less digits than its factorization.

28536886080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31993 (or 31980 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 28536886080 in words is "twenty-eight billion, five hundred thirty-six million, eight hundred eighty-six thousand, eighty".