193315864328 has 16 divisors (see below), whose sum is σ = 362472192000. Its totient is φ = 96656613136.

The previous prime is 193315864223. The next prime is 193315864333. The reversal of 193315864328 is 823468513391.

It is a happy number.

It is a Cunningham number, because it is equal to 439677²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 193315864328.

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 3 ways as a sum of consecutive naturals, for example, 769433 + ... + 989271.

It is an arithmetic number, because the mean of its divisors is an integer number (22654512000).

Almost surely, 2^193315864328 is an apocalyptic number.

It is an amenable number.

193315864328 is a deficient number, since it is larger than the sum of its proper divisors (169156327672).

193315864328 is a wasteful number, since it uses less digits than its factorization.

193315864328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329764 (or 329760 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The spelling of 193315864328 in words is "one hundred ninety-three billion, three hundred fifteen million, eight hundred sixty-four thousand, three hundred twenty-eight".