28344204868 has 48 divisors (see below), whose sum is σ = 58297276800. Its totient is φ = 11807389440.

The previous prime is 28344204841. The next prime is 28344204881. The reversal of 28344204868 is 86840244382.

It is a happy number.

It is an unprimeable number.

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, 50638 + ... + 243418.

It is an arithmetic number, because the mean of its divisors is an integer number (1214526600).

Almost surely, 2^28344204868 is an apocalyptic number.

28344204868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28344204868 is an abundant number, since it is smaller than the sum of its proper divisors (29953071932).

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

28344204868 is a wasteful number, since it uses less digits than its factorization.

28344204868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192940 (or 192938 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 49.

The spelling of 28344204868 in words is "twenty-eight billion, three hundred forty-four million, two hundred four thousand, eight hundred sixty-eight".