28991029248 has 124 divisors (see below), whose sum is σ = 85899345880. Its totient is φ = 9663676416.

The previous prime is 28991029219. The next prime is 28991029261. The reversal of 28991029248 is 84292019982.

The cubic root of 28991029248 is 3072.

It is a perfect power (a cube), and thus also a powerful number.

It is a Jordan-Polya number, since it can be written as (4!)³ ⋅ (2!)²¹.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nialpdrome in base 8.

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 28991029194 and 28991029203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9663676415 + 9663676416 + 9663676417.

Almost surely, 2^28991029248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28991029248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42949672940).

28991029248 is an abundant number, since it is smaller than the sum of its proper divisors (56908316632).

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

28991029248 is an frugal number, since it uses more digits than its factorization.

28991029248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 5 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

28991029248 divided by its sum of digits (54) gives a 29-th power (536870912 = 2²⁹).

The spelling of 28991029248 in words is "twenty-eight billion, nine hundred ninety-one million, twenty-nine thousand, two hundred forty-eight".