28498255336320 has 1536 divisors, whose sum is σ = 127364665420800. Its totient is φ = 5330982666240.

The previous prime is 28498255336319. The next prime is 28498255336351. The reversal of 28498255336320 is 2363355289482.

It is a super-2 number, since 2×28498255336320² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 404602866 + ... + 404673294.

It is an arithmetic number, because the mean of its divisors is an integer number (82919704050).

Almost surely, 2^{28498255336320} is an apocalyptic number.

28498255336320 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 28498255336320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63682332710400).

28498255336320 is an abundant number, since it is smaller than the sum of its proper divisors (98866410084480).

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

28498255336320 is a wasteful number, since it uses less digits than its factorization.

28498255336320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70516 (or 70497 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 60.

The spelling of 28498255336320 in words is "twenty-eight trillion, four hundred ninety-eight billion, two hundred fifty-five million, three hundred thirty-six thousand, three hundred twenty".