28265941548 has 144 divisors (see below), whose sum is σ = 84021507360. Its totient is φ = 8185522176.

The previous prime is 28265941547. The next prime is 28265941549. The reversal of 28265941548 is 84514956282.

28265941548 is a `hidden beast` number, since 2 + 8 + 2 + 6 + 5 + 94 + 1 + 548 = 666.

It is an interprime number because it is at equal distance from previous prime (28265941547) and next prime (28265941549).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 28265941494 and 28265941503.

It is not an unprimeable number, because it can be changed into a prime (28265941541) 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 47 ways as a sum of consecutive naturals, for example, 264736 + ... + 355832.

It is an arithmetic number, because the mean of its divisors is an integer number (583482690).

Almost surely, 2^28265941548 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 28265941548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42010753680).

28265941548 is an abundant number, since it is smaller than the sum of its proper divisors (55755565812).

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

28265941548 is a wasteful number, since it uses less digits than its factorization.

28265941548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91153 (or 91132 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 28265941548 in words is "twenty-eight billion, two hundred sixty-five million, nine hundred forty-one thousand, five hundred forty-eight".