28110834100 has 72 divisors (see below), whose sum is σ = 64504371456. Its totient is φ = 10616160000.

The previous prime is 28110834049. The next prime is 28110834121. The reversal of 28110834100 is 143801182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16515 + ... + 237685.

It is an arithmetic number, because the mean of its divisors is an integer number (895894048).

Almost surely, 2^28110834100 is an apocalyptic number.

28110834100 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 28110834100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32252185728).

28110834100 is an abundant number, since it is smaller than the sum of its proper divisors (36393537356).

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

28110834100 is a wasteful number, since it uses less digits than its factorization.

28110834100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221257 (or 221250 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 28110834100 in words is "twenty-eight billion, one hundred ten million, eight hundred thirty-four thousand, one hundred".