28812272160 has 192 divisors, whose sum is σ = 104161075200. Its totient is φ = 6557924352.

The previous prime is 28812272141. The next prime is 28812272161. The reversal of 28812272160 is 6127221882.

It is a super-2 number, since 2×28812272160² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28812272161) 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, 785101 + ... + 820979.

It is an arithmetic number, because the mean of its divisors is an integer number (542505600).

Almost surely, 2^28812272160 is an apocalyptic number.

28812272160 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 28812272160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52080537600).

28812272160 is an abundant number, since it is smaller than the sum of its proper divisors (75348803040).

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

28812272160 is a wasteful number, since it uses less digits than its factorization.

28812272160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36143 (or 36135 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 28812272160 in words is "twenty-eight billion, eight hundred twelve million, two hundred seventy-two thousand, one hundred sixty".