28360415868 has 12 divisors (see below), whose sum is σ = 66174303720. Its totient is φ = 9453471952.

The previous prime is 28360415861. The next prime is 28360415879. The reversal of 28360415868 is 86851406382.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 28360415868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28360415861) 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 3 ways as a sum of consecutive naturals, for example, 1181683983 + ... + 1181684006.

It is an arithmetic number, because the mean of its divisors is an integer number (5514525310).

Almost surely, 2^28360415868 is an apocalyptic number.

It is an amenable number.

28360415868 is an abundant number, since it is smaller than the sum of its proper divisors (37813887852).

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

28360415868 is a wasteful number, since it uses less digits than its factorization.

28360415868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363367996 (or 2363367994 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 28360415868 in words is "twenty-eight billion, three hundred sixty million, four hundred fifteen thousand, eight hundred sixty-eight".