28650293984 has 48 divisors (see below), whose sum is σ = 60826544352. Its totient is φ = 13205273088.

The previous prime is 28650293983. The next prime is 28650293989. The reversal of 28650293984 is 48939205682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650293983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 262742 + ... + 355434.

It is an arithmetic number, because the mean of its divisors is an integer number (1267219674).

Almost surely, 2^28650293984 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 28650293984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30413272176).

28650293984 is an abundant number, since it is smaller than the sum of its proper divisors (32176250368).

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

28650293984 is a wasteful number, since it uses less digits than its factorization.

28650293984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93459 (or 93451 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 28650293984 in words is "twenty-eight billion, six hundred fifty million, two hundred ninety-three thousand, nine hundred eighty-four".