28976316672 has 144 divisors (see below), whose sum is σ = 83394807552. Its totient is φ = 8897003520.

The previous prime is 28976316661. The next prime is 28976316679. The reversal of 28976316672 is 27661367982.

It is not an unprimeable number, because it can be changed into a prime (28976316679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590022 + ... + 637242.

It is an arithmetic number, because the mean of its divisors is an integer number (579130608).

Almost surely, 2^28976316672 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 28976316672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41697403776).

28976316672 is an abundant number, since it is smaller than the sum of its proper divisors (54418490880).

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

28976316672 is a wasteful number, since it uses less digits than its factorization.

28976316672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47304 (or 47290 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The spelling of 28976316672 in words is "twenty-eight billion, nine hundred seventy-six million, three hundred sixteen thousand, six hundred seventy-two".