28892220112 has 20 divisors (see below), whose sum is σ = 63975630496. Its totient is φ = 12382380000.

The previous prime is 28892220107. The next prime is 28892220127. The reversal of 28892220112 is 21102229882.

It is a super-3 number, since 3×28892220112³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128983014 + ... + 128983237.

Almost surely, 2^28892220112 is an apocalyptic number.

It is an amenable number.

28892220112 is an abundant number, since it is smaller than the sum of its proper divisors (35083410384).

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

28892220112 is a wasteful number, since it uses less digits than its factorization.

28892220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257966266 (or 257966260 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

Adding to 28892220112 its reverse (21102229882), we get a palindrome (49994449994).

The spelling of 28892220112 in words is "twenty-eight billion, eight hundred ninety-two million, two hundred twenty thousand, one hundred twelve".