28798251802320 has 1280 divisors, whose sum is σ = 126525021880320. Its totient is φ = 5218454937600.

The previous prime is 28798251802319. The next prime is 28798251802337. The reversal of 28798251802320 is 2320815289782.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1675184925 + ... + 1675202115.

It is an arithmetic number, because the mean of its divisors is an integer number (98847673344).

Almost surely, 2^{28798251802320} is an apocalyptic number.

28798251802320 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 28798251802320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63262510940160).

28798251802320 is an abundant number, since it is smaller than the sum of its proper divisors (97726770078000).

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

28798251802320 is a wasteful number, since it uses less digits than its factorization.

28798251802320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17624 (or 17618 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 28798251802320 in words is "twenty-eight trillion, seven hundred ninety-eight billion, two hundred fifty-one million, eight hundred two thousand, three hundred twenty".