28581010112 has 14 divisors (see below), whose sum is σ = 56715442068. Its totient is φ = 14290505024.

The previous prime is 28581010093. The next prime is 28581010127. The reversal of 28581010112 is 21101018582.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223289078 + ... + 223289205.

Almost surely, 2^28581010112 is an apocalyptic number.

It is an amenable number.

28581010112 is a deficient number, since it is larger than the sum of its proper divisors (28134431956).

28581010112 is an equidigital number, since it uses as much as digits as its factorization.

28581010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446578295 (or 446578285 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 29.

Adding to 28581010112 its reverse (21101018582), we get a palindrome (49682028694).

The spelling of 28581010112 in words is "twenty-eight billion, five hundred eighty-one million, ten thousand, one hundred twelve".