28028219076 has 240 divisors, whose sum is σ = 87375435840. Its totient is φ = 7722190080.

The previous prime is 28028219041. The next prime is 28028219123. The reversal of 28028219076 is 67091282082.

28028219076 is a `hidden beast` number, since 280 + 282 + 1 + 90 + 7 + 6 = 666.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 3099730 + ... + 3108758.

It is an arithmetic number, because the mean of its divisors is an integer number (364064316).

Almost surely, 2^28028219076 is an apocalyptic number.

28028219076 is a gapful number since it is divisible by the number (26) 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 28028219076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43687717920).

28028219076 is an abundant number, since it is smaller than the sum of its proper divisors (59347216764).

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

28028219076 is a wasteful number, since it uses less digits than its factorization.

28028219076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9136 (or 9125 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 28028219076 in words is "twenty-eight billion, twenty-eight million, two hundred nineteen thousand, seventy-six".