28808472000 has 1344 divisors, whose sum is σ = 128792581632. Its totient is φ = 5591040000.

The previous prime is 28808471959. The next prime is 28808472047. The reversal of 28808472000 is 27480882.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a self number, because there is not a number n which added to its sum of digits gives 28808472000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 219911935 + ... + 219912065.

Almost surely, 2^28808472000 is an apocalyptic number.

28808472000 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 28808472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64396290816).

28808472000 is an abundant number, since it is smaller than the sum of its proper divisors (99984109632).

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

28808472000 is a wasteful number, since it uses less digits than its factorization.

28808472000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The spelling of 28808472000 in words is "twenty-eight billion, eight hundred eight million, four hundred seventy-two thousand".