28881784848 has 80 divisors (see below), whose sum is σ = 88977447936. Its totient is φ = 7893156480.

The previous prime is 28881784847. The next prime is 28881784859. The reversal of 28881784848 is 84848718882.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28881784847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860918 + ... + 1876373.

Almost surely, 2^28881784848 is an apocalyptic number.

28881784848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28881784848 is an abundant number, since it is smaller than the sum of its proper divisors (60095663088).

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

28881784848 is a wasteful number, since it uses less digits than its factorization.

28881784848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737332 (or 3737326 counting only the distinct ones).

The product of its digits is 58720256, while the sum is 66.

The spelling of 28881784848 in words is "twenty-eight billion, eight hundred eighty-one million, seven hundred eighty-four thousand, eight hundred forty-eight".