28755287792 has 240 divisors, whose sum is σ = 76334400000. Its totient is φ = 10344660480.

The previous prime is 28755287791. The next prime is 28755287797. The reversal of 28755287792 is 29778255782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28755287791) 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, 5749709 + ... + 5754707.

It is an arithmetic number, because the mean of its divisors is an integer number (318060000).

Almost surely, 2^28755287792 is an apocalyptic number.

28755287792 is a gapful number since it is divisible by the number (22) 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 28755287792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38167200000).

28755287792 is an abundant number, since it is smaller than the sum of its proper divisors (47579112208).

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

28755287792 is a wasteful number, since it uses less digits than its factorization.

28755287792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084 (or 5071 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 62.

The spelling of 28755287792 in words is "twenty-eight billion, seven hundred fifty-five million, two hundred eighty-seven thousand, seven hundred ninety-two".