28884860928 has 608 divisors, whose sum is σ = 108716152320. Its totient is φ = 7361003520.

The previous prime is 28884860869. The next prime is 28884860933. The reversal of 28884860928 is 82906848882.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544997350 + ... + 544997402.

Almost surely, 2^28884860928 is an apocalyptic number.

28884860928 is a gapful number since it is divisible by the number (28) 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 28884860928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54358076160).

28884860928 is an abundant number, since it is smaller than the sum of its proper divisors (79831291392).

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

28884860928 is an frugal number, since it uses more digits than its factorization.

28884860928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 63.

The spelling of 28884860928 in words is "twenty-eight billion, eight hundred eighty-four million, eight hundred sixty thousand, nine hundred twenty-eight".