28585310432 has 96 divisors (see below), whose sum is σ = 67257050112. Its totient is φ = 11693113344.

The previous prime is 28585310431. The next prime is 28585310443. The reversal of 28585310432 is 23401358582.

It is a self number, because there is not a number n which added to its sum of digits gives 28585310432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585310431) 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 15 ways as a sum of consecutive naturals, for example, 2503328 + ... + 2514720.

It is an arithmetic number, because the mean of its divisors is an integer number (700594272).

Almost surely, 2^28585310432 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 28585310432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33628525056).

28585310432 is an abundant number, since it is smaller than the sum of its proper divisors (38671739680).

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

28585310432 is a wasteful number, since it uses less digits than its factorization.

28585310432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920 (or 11912 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 28585310432 in words is "twenty-eight billion, five hundred eighty-five million, three hundred ten thousand, four hundred thirty-two".