28993884480 has 1008 divisors, whose sum is σ = 120155817600. Its totient is φ = 6386688000.

The previous prime is 28993884457. The next prime is 28993884503. The reversal of 28993884480 is 8448839982.

28993884480 is a `hidden beast` number, since 28 + 9 + 93 + 88 + 448 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (28993884457) and next prime (28993884503).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 192012405 + ... + 192012555.

It is an arithmetic number, because the mean of its divisors is an integer number (119202200).

Almost surely, 2^28993884480 is an apocalyptic number.

28993884480 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 28993884480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60077908800).

28993884480 is an abundant number, since it is smaller than the sum of its proper divisors (91161933120).

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

28993884480 is a wasteful number, since it uses less digits than its factorization.

28993884480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 63.

The spelling of 28993884480 in words is "twenty-eight billion, nine hundred ninety-three million, eight hundred eighty-four thousand, four hundred eighty".