28318325969934 has 192 divisors, whose sum is σ = 82467625443840. Its totient is φ = 6782434940160.

The previous prime is 28318325969909. The next prime is 28318325969959. The reversal of 28318325969934 is 43996952381382.

28318325969934 is a `hidden beast` number, since 2 + 83 + 183 + 259 + 6 + 99 + 34 = 666.

It is an interprime number because it is at equal distance from previous prime (28318325969909) and next prime (28318325969959).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16233232 + ... + 17892860.

It is an arithmetic number, because the mean of its divisors is an integer number (429518882520).

Almost surely, 2^{28318325969934} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28318325969934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41233812721920).

28318325969934 is an abundant number, since it is smaller than the sum of its proper divisors (54149299473906).

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

28318325969934 is a wasteful number, since it uses less digits than its factorization.

28318325969934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660615 (or 1660612 counting only the distinct ones).

The product of its digits is 604661760, while the sum is 72.

The spelling of 28318325969934 in words is "twenty-eight trillion, three hundred eighteen billion, three hundred twenty-five million, nine hundred sixty-nine thousand, nine hundred thirty-four".