28603541772 has 96 divisors (see below), whose sum is σ = 79904260800. Its totient is φ = 8796404736.

The previous prime is 28603541693. The next prime is 28603541833. The reversal of 28603541772 is 27714530682.

28603541772 is a `hidden beast` number, since 28 + 603 + 5 + 4 + 17 + 7 + 2 = 666.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3389254 + ... + 3397682.

It is an arithmetic number, because the mean of its divisors is an integer number (832336050).

Almost surely, 2^28603541772 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 28603541772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39952130400).

28603541772 is an abundant number, since it is smaller than the sum of its proper divisors (51300719028).

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

28603541772 is a wasteful number, since it uses less digits than its factorization.

28603541772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872 (or 10864 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 28603541772 in words is "twenty-eight billion, six hundred three million, five hundred forty-one thousand, seven hundred seventy-two".