193313609116993 has 4 divisors (see below), whose sum is σ = 193387028644548. Its totient is φ = 193240189589440.

The previous prime is 193313609116937. The next prime is 193313609117039. The reversal of 193313609116993 is 399611906313391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104700229329969 + 88613379787024 = 10232313^2 + 9413468^2 .

It is a cyclic number.

It is not a de Polignac number, because 193313609116993 - 2³⁷ = 193176170163521 is a prime.

It is a super-2 number, since 2×193313609116993² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193313609116493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36709759828 + ... + 36709765093.

It is an arithmetic number, because the mean of its divisors is an integer number (48346757161137).

Almost surely, 2^{193313609116993} is an apocalyptic number.

It is an amenable number.

193313609116993 is a deficient number, since it is larger than the sum of its proper divisors (73419527555).

193313609116993 is an equidigital number, since it uses as much as digits as its factorization.

193313609116993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73419527554.

The product of its (nonzero) digits is 19131876, while the sum is 64.

The spelling of 193313609116993 in words is "one hundred ninety-three trillion, three hundred thirteen billion, six hundred nine million, one hundred sixteen thousand, nine hundred ninety-three".