28998770976 has 288 divisors, whose sum is σ = 99891792000. Its totient is φ = 7795077120.

The previous prime is 28998770947. The next prime is 28998771001. The reversal of 28998770976 is 67907789982.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5704756 + ... + 5709836.

It is an arithmetic number, because the mean of its divisors is an integer number (346846500).

Almost surely, 2^28998770976 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 28998770976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49945896000).

28998770976 is an abundant number, since it is smaller than the sum of its proper divisors (70893021024).

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

28998770976 is a wasteful number, since it uses less digits than its factorization.

28998770976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5272 (or 5261 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 72.

The spelling of 28998770976 in words is "twenty-eight billion, nine hundred ninety-eight million, seven hundred seventy thousand, nine hundred seventy-six".