28648037232 has 200 divisors, whose sum is σ = 85109889920. Its totient is φ = 9298074240.

The previous prime is 28648037177. The next prime is 28648037239. The reversal of 28648037232 is 23273084682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28648037239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24464007 + ... + 24465177.

Almost surely, 2^28648037232 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 28648037232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42554944960).

28648037232 is an abundant number, since it is smaller than the sum of its proper divisors (56461852688).

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

28648037232 is a wasteful number, since it uses less digits than its factorization.

28648037232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 28648037232 in words is "twenty-eight billion, six hundred forty-eight million, thirty-seven thousand, two hundred thirty-two".