28423280106 has 32 divisors (see below), whose sum is σ = 68021526720. Its totient is φ = 8745624432.

The previous prime is 28423280099. The next prime is 28423280107. The reversal of 28423280106 is 60108232482.

It is not an unprimeable number, because it can be changed into a prime (28423280107) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20243800 + ... + 20245203.

It is an arithmetic number, because the mean of its divisors is an integer number (2125672710).

Almost surely, 2^28423280106 is an apocalyptic number.

28423280106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28423280106 is an abundant number, since it is smaller than the sum of its proper divisors (39598246614).

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

28423280106 is a wasteful number, since it uses less digits than its factorization.

28423280106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40489027 (or 40489021 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 28423280106 in words is "twenty-eight billion, four hundred twenty-three million, two hundred eighty thousand, one hundred six".