28504568010 has 64 divisors (see below), whose sum is σ = 70404349824. Its totient is φ = 7380576000.

The previous prime is 28504567979. The next prime is 28504568011. The reversal of 28504568010 is 1086540582.

It is a self number, because there is not a number n which added to its sum of digits gives 28504568010.

It is not an unprimeable number, because it can be changed into a prime (28504568011) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 518860 + ... + 571160.

It is an arithmetic number, because the mean of its divisors is an integer number (1100067966).

Almost surely, 2^28504568010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28504568010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35202174912).

28504568010 is an abundant number, since it is smaller than the sum of its proper divisors (41899781814).

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

28504568010 is a wasteful number, since it uses less digits than its factorization.

28504568010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52839.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 28504568010 in words is "twenty-eight billion, five hundred four million, five hundred sixty-eight thousand, ten".