28523803776 has 192 divisors, whose sum is σ = 82317060000. Its totient is φ = 8747261952.

The previous prime is 28523803741. The next prime is 28523803783. The reversal of 28523803776 is 67730832582.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27190900 + ... + 27191948.

Almost surely, 2^28523803776 is an apocalyptic number.

28523803776 is a gapful number since it is divisible by the number (26) 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 28523803776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41158530000).

28523803776 is an abundant number, since it is smaller than the sum of its proper divisors (53793256224).

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

28523803776 is a wasteful number, since it uses less digits than its factorization.

28523803776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 28523803776 in words is "twenty-eight billion, five hundred twenty-three million, eight hundred three thousand, seven hundred seventy-six".