28838893122 has 54 divisors (see below), whose sum is σ = 67682461977. Its totient is φ = 8870623632.

The previous prime is 28838893067. The next prime is 28838893151. The reversal of 28838893122 is 22139883882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24658106841 + 4180786281 = 157029^2 + 64659^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=120081.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9364779 + ... + 9367857.

Almost surely, 2^28838893122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28838893122

28838893122 is an abundant number, since it is smaller than the sum of its proper divisors (38843568855).

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

28838893122 is an equidigital number, since it uses as much as digits as its factorization.

28838893122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6192 (or 3097 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 28838893122 in words is "twenty-eight billion, eight hundred thirty-eight million, eight hundred ninety-three thousand, one hundred twenty-two".