28768844104 has 128 divisors (see below), whose sum is σ = 72634060800. Its totient is φ = 10316586240.

The previous prime is 28768844029. The next prime is 28768844189. The reversal of 28768844104 is 40144886782.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2869869 + ... + 2879875.

It is an arithmetic number, because the mean of its divisors is an integer number (567453600).

Almost surely, 2^28768844104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28768844104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36317030400).

28768844104 is an abundant number, since it is smaller than the sum of its proper divisors (43865216696).

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

28768844104 is a wasteful number, since it uses less digits than its factorization.

28768844104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10403 (or 10399 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 28768844104 in words is "twenty-eight billion, seven hundred sixty-eight million, eight hundred forty-four thousand, one hundred four".