28834533280 has 192 divisors, whose sum is σ = 82157483520. Its totient is φ = 9349300224.

The previous prime is 28834533269. The next prime is 28834533283. The reversal of 28834533280 is 8233543882.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 28834533280.

It is not an unprimeable number, because it can be changed into a prime (28834533283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2286352 + ... + 2298928.

It is an arithmetic number, because the mean of its divisors is an integer number (427903560).

Almost surely, 2^28834533280 is an apocalyptic number.

28834533280 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 28834533280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41078741760).

28834533280 is an abundant number, since it is smaller than the sum of its proper divisors (53322950240).

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

28834533280 is a wasteful number, since it uses less digits than its factorization.

28834533280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12711 (or 12703 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 28834533280 in words is "twenty-eight billion, eight hundred thirty-four million, five hundred thirty-three thousand, two hundred eighty".