28606842880 has 576 divisors, whose sum is σ = 89541728640. Its totient is φ = 8670412800.

The previous prime is 28606842851. The next prime is 28606842881. The reversal of 28606842880 is 8824860682.

It is a super-2 number, since 2×28606842880² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28606842881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391874524 + ... + 391874596.

It is an arithmetic number, because the mean of its divisors is an integer number (155454390).

Almost surely, 2^28606842880 is an apocalyptic number.

28606842880 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 28606842880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44770864320).

28606842880 is an abundant number, since it is smaller than the sum of its proper divisors (60934885760).

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

28606842880 is a wasteful number, since it uses less digits than its factorization.

28606842880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 28606842880 in words is "twenty-eight billion, six hundred six million, eight hundred forty-two thousand, eight hundred eighty".