28898773008 has 160 divisors (see below), whose sum is σ = 91871262720. Its totient is φ = 7639296000.

The previous prime is 28898772989. The next prime is 28898773009. The reversal of 28898773008 is 80037789882.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28898773009) by changing a digit.

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, 294133 + ... + 379883.

It is an arithmetic number, because the mean of its divisors is an integer number (574195392).

Almost surely, 2^28898773008 is an apocalyptic number.

28898773008 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 28898773008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45935631360).

28898773008 is an abundant number, since it is smaller than the sum of its proper divisors (62972489712).

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

28898773008 is a wasteful number, since it uses less digits than its factorization.

28898773008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85845 (or 85839 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 28898773008 in words is "twenty-eight billion, eight hundred ninety-eight million, seven hundred seventy-three thousand, eight".