28508523336 has 48 divisors (see below), whose sum is σ = 78187948800. Its totient is φ = 9382550112.

The previous prime is 28508523331. The next prime is 28508523377. The reversal of 28508523336 is 63332580582.

It is a junction number, because it is equal to n+sod(n) for n = 28508523291 and 28508523300.

It is not an unprimeable number, because it can be changed into a prime (28508523331) 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 11 ways as a sum of consecutive naturals, for example, 2500336 + ... + 2511711.

It is an arithmetic number, because the mean of its divisors is an integer number (1628915600).

Almost surely, 2^28508523336 is an apocalyptic number.

It is an amenable number.

28508523336 is an abundant number, since it is smaller than the sum of its proper divisors (49679425464).

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

28508523336 is a wasteful number, since it uses less digits than its factorization.

28508523336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012138 (or 5012131 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 28508523336 in words is "twenty-eight billion, five hundred eight million, five hundred twenty-three thousand, three hundred thirty-six".