28002551472000 has 1280 divisors, whose sum is σ = 122695135580160. Its totient is φ = 6194050560000.

The previous prime is 28002551471941. The next prime is 28002551472029. The reversal of 28002551472000 is 27415520082.

It is a happy number.

28002551472000 is a `hidden beast` number, since 2 + 80 + 0 + 2 + 551 + 4 + 7 + 20 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 281182215 + ... + 281281785.

It is an arithmetic number, because the mean of its divisors is an integer number (95855574672).

Almost surely, 2^{28002551472000} is an apocalyptic number.

28002551472000 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 28002551472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61347567790080).

28002551472000 is an abundant number, since it is smaller than the sum of its proper divisors (94692584108160).

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

28002551472000 is an equidigital number, since it uses as much as digits as its factorization.

28002551472000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99650 (or 99619 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

Adding to 28002551472000 its reverse (27415520082), we get a palindrome (28029966992082).

The spelling of 28002551472000 in words is "twenty-eight trillion, two billion, five hundred fifty-one million, four hundred seventy-two thousand".