28342388166 has 32 divisors (see below), whose sum is σ = 58872357888. Its totient is φ = 9086605920.

The previous prime is 28342388161. The next prime is 28342388177. The reversal of 28342388166 is 66188324382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342388161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437101 + ... + 497736.

It is an arithmetic number, because the mean of its divisors is an integer number (1839761184).

Almost surely, 2^28342388166 is an apocalyptic number.

28342388166 is an abundant number, since it is smaller than the sum of its proper divisors (30529969722).

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

28342388166 is a wasteful number, since it uses less digits than its factorization.

28342388166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935036.

The product of its digits is 2654208, while the sum is 51.

The spelling of 28342388166 in words is "twenty-eight billion, three hundred forty-two million, three hundred eighty-eight thousand, one hundred sixty-six".