28343383508 has 24 divisors (see below), whose sum is σ = 55975963680. Its totient is φ = 12439101920.

The previous prime is 28343383477. The next prime is 28343383573. The reversal of 28343383508 is 80538334382.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11105066 + ... + 11107617.

It is an arithmetic number, because the mean of its divisors is an integer number (2332331820).

Almost surely, 2^28343383508 is an apocalyptic number.

It is an amenable number.

28343383508 is a deficient number, since it is larger than the sum of its proper divisors (27632580172).

28343383508 is a wasteful number, since it uses less digits than its factorization.

28343383508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22212727 (or 22212725 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 28343383508 in words is "twenty-eight billion, three hundred forty-three million, three hundred eighty-three thousand, five hundred eight".