28418304168 has 32 divisors (see below), whose sum is σ = 78939734400. Its totient is φ = 9472767984.

The previous prime is 28418304139. The next prime is 28418304169. The reversal of 28418304168 is 86140381482.

28418304168 is a `hidden beast` number, since 284 + 1 + 8 + 304 + 1 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (28418304169) 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 7 ways as a sum of consecutive naturals, for example, 65782896 + ... + 65783327.

It is an arithmetic number, because the mean of its divisors is an integer number (2466866700).

Almost surely, 2^28418304168 is an apocalyptic number.

It is an amenable number.

28418304168 is an abundant number, since it is smaller than the sum of its proper divisors (50521430232).

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

28418304168 is a wasteful number, since it uses less digits than its factorization.

28418304168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131566238 (or 131566228 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 28418304168 in words is "twenty-eight billion, four hundred eighteen million, three hundred four thousand, one hundred sixty-eight".