28645835748 has 12 divisors (see below), whose sum is σ = 66840283440. Its totient is φ = 9548611912.

The previous prime is 28645835717. The next prime is 28645835791. The reversal of 28645835748 is 84753854682.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28645835691 and 28645835700.

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 3 ways as a sum of consecutive naturals, for example, 1193576478 + ... + 1193576501.

It is an arithmetic number, because the mean of its divisors is an integer number (5570023620).

Almost surely, 2^28645835748 is an apocalyptic number.

It is an amenable number.

28645835748 is an abundant number, since it is smaller than the sum of its proper divisors (38194447692).

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

28645835748 is a wasteful number, since it uses less digits than its factorization.

28645835748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387152986 (or 2387152984 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 60.

The spelling of 28645835748 in words is "twenty-eight billion, six hundred forty-five million, eight hundred thirty-five thousand, seven hundred forty-eight".