193136104595809 has 4 divisors (see below), whose sum is σ = 193470829214404. Its totient is φ = 192801379977216.

The previous prime is 193136104595807. The next prime is 193136104595813. The reversal of 193136104595809 is 908595401631391.

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 137242911965184 + 55893192630625 = 11715072^2 + 7476175^2 .

It is a cyclic number.

It is not a de Polignac number, because 193136104595809 - 2¹ = 193136104595807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193136104595807) 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, 167362308432 + ... + 167362309585.

It is an arithmetic number, because the mean of its divisors is an integer number (48367707303601).

Almost surely, 2^{193136104595809} is an apocalyptic number.

It is an amenable number.

193136104595809 is a deficient number, since it is larger than the sum of its proper divisors (334724618595).

193136104595809 is an equidigital number, since it uses as much as digits as its factorization.

193136104595809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334724618594.

The product of its (nonzero) digits is 31492800, while the sum is 64.

The spelling of 193136104595809 in words is "one hundred ninety-three trillion, one hundred thirty-six billion, one hundred four million, five hundred ninety-five thousand, eight hundred nine".