28011046180 has 96 divisors (see below), whose sum is σ = 63981042048. Its totient is φ = 10239590400.

The previous prime is 28011046169. The next prime is 28011046187. The reversal of 28011046180 is 8164011082.

It is not an unprimeable number, because it can be changed into a prime (28011046187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21831819 + ... + 21833101.

It is an arithmetic number, because the mean of its divisors is an integer number (666469188).

Almost surely, 2^28011046180 is an apocalyptic number.

28011046180 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 28011046180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31990521024).

28011046180 is an abundant number, since it is smaller than the sum of its proper divisors (35969995868).

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

28011046180 is a wasteful number, since it uses less digits than its factorization.

28011046180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The spelling of 28011046180 in words is "twenty-eight billion, eleven million, forty-six thousand, one hundred eighty".