28384884792 has 96 divisors (see below), whose sum is σ = 85446906480. Its totient is φ = 8439175680.

The previous prime is 28384884791. The next prime is 28384884811. The reversal of 28384884792 is 29748848382.

28384884792 is a `hidden beast` number, since 2 + 8 + 3 + 84 + 88 + 479 + 2 = 666.

It is a super-2 number, since 2×28384884792² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28384884791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296133 + ... + 380084.

Almost surely, 2^28384884792 is an apocalyptic number.

28384884792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28384884792 is an abundant number, since it is smaller than the sum of its proper divisors (57062021688).

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

28384884792 is a wasteful number, since it uses less digits than its factorization.

28384884792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676293 (or 676286 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 28384884792 in words is "twenty-eight billion, three hundred eighty-four million, eight hundred eighty-four thousand, seven hundred ninety-two".