28648329696 has 192 divisors, whose sum is σ = 99646848000. Its totient is φ = 7829319168.

The previous prime is 28648329667. The next prime is 28648329707. The reversal of 28648329696 is 69692384682.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 36130 + ... + 242078.

It is an arithmetic number, because the mean of its divisors is an integer number (518994000).

Almost surely, 2^28648329696 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 28648329696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49823424000).

28648329696 is an abundant number, since it is smaller than the sum of its proper divisors (70998518304).

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

28648329696 is a wasteful number, since it uses less digits than its factorization.

28648329696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205998 (or 205984 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 28648329696 in words is "twenty-eight billion, six hundred forty-eight million, three hundred twenty-nine thousand, six hundred ninety-six".