28675133424 has 240 divisors, whose sum is σ = 96879704064. Its totient is φ = 7743859200.

The previous prime is 28675133423. The next prime is 28675133437. The reversal of 28675133424 is 42433157682.

28675133424 is a `hidden beast` number, since 2 + 86 + 7 + 513 + 34 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28675133424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28675133423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1332994 + ... + 1354334.

Almost surely, 2^28675133424 is an apocalyptic number.

28675133424 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 28675133424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48439852032).

28675133424 is an abundant number, since it is smaller than the sum of its proper divisors (68204570640).

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

28675133424 is a wasteful number, since it uses less digits than its factorization.

28675133424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21436 (or 21427 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 28675133424 in words is "twenty-eight billion, six hundred seventy-five million, one hundred thirty-three thousand, four hundred twenty-four".