28558373616 has 120 divisors (see below), whose sum is σ = 83453788080. Its totient is φ = 9105159168.

The previous prime is 28558373611. The next prime is 28558373621. The reversal of 28558373616 is 61637385582.

28558373616 is a `hidden beast` number, since 2 + 8 + 558 + 3 + 73 + 6 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (28558373611) and next prime (28558373621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28558373611) 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 23 ways as a sum of consecutive naturals, for example, 414876 + ... + 478788.

It is an arithmetic number, because the mean of its divisors is an integer number (695448234).

Almost surely, 2^28558373616 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 28558373616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41726894040).

28558373616 is an abundant number, since it is smaller than the sum of its proper divisors (54895414464).

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

28558373616 is a wasteful number, since it uses less digits than its factorization.

28558373616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64063 (or 64054 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 28558373616 in words is "twenty-eight billion, five hundred fifty-eight million, three hundred seventy-three thousand, six hundred sixteen".