28464220112 has 40 divisors (see below), whose sum is σ = 58064096160. Its totient is φ = 13480248960.

The previous prime is 28464220097. The next prime is 28464220133. The reversal of 28464220112 is 21102246482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2637287 + ... + 2648057.

It is an arithmetic number, because the mean of its divisors is an integer number (1451602404).

Almost surely, 2^28464220112 is an apocalyptic number.

It is an amenable number.

28464220112 is an abundant number, since it is smaller than the sum of its proper divisors (29599876048).

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

28464220112 is a wasteful number, since it uses less digits than its factorization.

28464220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19491 (or 19485 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 28464220112 its reverse (21102246482), we get a palindrome (49566466594).

The spelling of 28464220112 in words is "twenty-eight billion, four hundred sixty-four million, two hundred twenty thousand, one hundred twelve".