28351572480000 has 3120 divisors, whose sum is σ = 133370268102720. Its totient is φ = 5883494400000.

The previous prime is 28351572479903. The next prime is 28351572480241. The reversal of 28351572480000 is 8427515382.

28351572480000 is a `hidden beast` number, since 2 + 8 + 35 + 1 + 572 + 48 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 37255679620 + ... + 37255680380.

Almost surely, 2^{28351572480000} is an apocalyptic number.

28351572480000 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 28351572480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66685134051360).

28351572480000 is an abundant number, since it is smaller than the sum of its proper divisors (105018695622720).

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

28351572480000 is an equidigital number, since it uses as much as digits as its factorization.

28351572480000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

Adding to 28351572480000 its reverse (8427515382), we get a palindrome (28359999995382).

The spelling of 28351572480000 in words is "twenty-eight trillion, three hundred fifty-one billion, five hundred seventy-two million, four hundred eighty thousand".