28657544300 has 288 divisors, whose sum is σ = 83244672000. Its totient is φ = 8288870400.

The previous prime is 28657544269. The next prime is 28657544339. The reversal of 28657544300 is 344575682.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 9554201 + ... + 9557199.

It is an arithmetic number, because the mean of its divisors is an integer number (289044000).

Almost surely, 2^28657544300 is an apocalyptic number.

28657544300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28657544300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41622336000).

28657544300 is an abundant number, since it is smaller than the sum of its proper divisors (54587127700).

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

28657544300 is a wasteful number, since it uses less digits than its factorization.

28657544300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121 (or 3114 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 28657544300 in words is "twenty-eight billion, six hundred fifty-seven million, five hundred forty-four thousand, three hundred".