28687363180 has 432 divisors, whose sum is σ = 80703846720. Its totient is φ = 8372947968.

The previous prime is 28687363127. The next prime is 28687363181. The reversal of 28687363180 is 8136378682.

It is not an unprimeable number, because it can be changed into a prime (28687363181) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 775334122 + ... + 775334158.

It is an arithmetic number, because the mean of its divisors is an integer number (186814460).

Almost surely, 2^28687363180 is an apocalyptic number.

28687363180 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 28687363180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40351923360).

28687363180 is an abundant number, since it is smaller than the sum of its proper divisors (52016483540).

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

28687363180 is a wasteful number, since it uses less digits than its factorization.

28687363180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

It can be divided in two parts, 286873 and 63180, that added together give a palindrome (350053).

The spelling of 28687363180 in words is "twenty-eight billion, six hundred eighty-seven million, three hundred sixty-three thousand, one hundred eighty".