28235555328 has 160 divisors (see below), whose sum is σ = 76527601920. Its totient is φ = 9249914880.

The previous prime is 28235555291. The next prime is 28235555339. The reversal of 28235555328 is 82355553282.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22936473 + ... + 22937703.

It is an arithmetic number, because the mean of its divisors is an integer number (478297512).

Almost surely, 2^28235555328 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 28235555328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38263800960).

28235555328 is an abundant number, since it is smaller than the sum of its proper divisors (48292046592).

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

28235555328 is a wasteful number, since it uses less digits than its factorization.

28235555328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1482 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 48.

The spelling of 28235555328 in words is "twenty-eight billion, two hundred thirty-five million, five hundred fifty-five thousand, three hundred twenty-eight".