28785036112 has 160 divisors (see below), whose sum is σ = 67755663360. Its totient is φ = 11587898880.

The previous prime is 28785036101. The next prime is 28785036127. The reversal of 28785036112 is 21163058782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17001538 + ... + 17003230.

It is an arithmetic number, because the mean of its divisors is an integer number (423472896).

Almost surely, 2^28785036112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28785036112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33877831680).

28785036112 is an abundant number, since it is smaller than the sum of its proper divisors (38970627248).

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

28785036112 is a wasteful number, since it uses less digits than its factorization.

28785036112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 28785036112 in words is "twenty-eight billion, seven hundred eighty-five million, thirty-six thousand, one hundred twelve".