28823877720 has 192 divisors, whose sum is σ = 103594701600. Its totient is φ = 6891816960.

The previous prime is 28823877713. The next prime is 28823877737. The reversal of 28823877720 is 2777832882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239226 + ... + 338934.

Almost surely, 2^28823877720 is an apocalyptic number.

28823877720 is a gapful number since it is divisible by the number (20) 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 28823877720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51797350800).

28823877720 is an abundant number, since it is smaller than the sum of its proper divisors (74770823880).

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

28823877720 is a wasteful number, since it uses less digits than its factorization.

28823877720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99810 (or 99803 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 54.

The spelling of 28823877720 in words is "twenty-eight billion, eight hundred twenty-three million, eight hundred seventy-seven thousand, seven hundred twenty".