28574467544 has 64 divisors (see below), whose sum is σ = 64874779200. Its totient is φ = 11518377984.

The previous prime is 28574467529. The next prime is 28574467547. The reversal of 28574467544 is 44576447582.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 28574467544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574467547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1602872 + ... + 1620600.

It is an arithmetic number, because the mean of its divisors is an integer number (1013668425).

Almost surely, 2^28574467544 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 28574467544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32437389600).

28574467544 is an abundant number, since it is smaller than the sum of its proper divisors (36300311656).

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

28574467544 is a wasteful number, since it uses less digits than its factorization.

28574467544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19452 (or 19448 counting only the distinct ones).

The product of its digits is 30105600, while the sum is 56.

The spelling of 28574467544 in words is "twenty-eight billion, five hundred seventy-four million, four hundred sixty-seven thousand, five hundred forty-four".