28547243424 has 384 divisors, whose sum is σ = 101435443200. Its totient is φ = 7724553984.

The previous prime is 28547243423. The next prime is 28547243429. The reversal of 28547243424 is 42434274582.

28547243424 is a `hidden beast` number, since 28 + 547 + 2 + 43 + 42 + 4 = 666.

It is a super-2 number, since 2×28547243424² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28547243424.

It is not an unprimeable number, because it can be changed into a prime (28547243423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9306339 + ... + 9309405.

It is an arithmetic number, because the mean of its divisors is an integer number (264154800).

Almost surely, 2^28547243424 is an apocalyptic number.

28547243424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28547243424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50717721600).

28547243424 is an abundant number, since it is smaller than the sum of its proper divisors (72888199776).

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

28547243424 is an equidigital number, since it uses as much as digits as its factorization.

28547243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3098 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 45.

The spelling of 28547243424 in words is "twenty-eight billion, five hundred forty-seven million, two hundred forty-three thousand, four hundred twenty-four".