28284578148 has 24 divisors (see below), whose sum is σ = 66000081280. Its totient is φ = 9427802400.

The previous prime is 28284578131. The next prime is 28284578167. The reversal of 28284578148 is 84187548282.

It is a super-3 number, since 3×28284578148³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 500598 + ... + 554226.

Almost surely, 2^28284578148 is an apocalyptic number.

It is an amenable number.

28284578148 is an abundant number, since it is smaller than the sum of its proper divisors (37715503132).

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

28284578148 is a wasteful number, since it uses less digits than its factorization.

28284578148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97587 (or 97585 counting only the distinct ones).

The product of its digits is 9175040, while the sum is 57.

The spelling of 28284578148 in words is "twenty-eight billion, two hundred eighty-four million, five hundred seventy-eight thousand, one hundred forty-eight".