193384730489 has 4 divisors (see below), whose sum is σ = 193395851124. Its totient is φ = 193373609856.

The previous prime is 193384730479. The next prime is 193384730491. The reversal of 193384730489 is 984037483391.

193384730489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984037483391 = 43 ⋅22884592637.

It can be written as a sum of positive squares in 2 ways, for example, as 112498526464 + 80886204025 = 335408^2 + 284405^2 .

It is a cyclic number.

It is not a de Polignac number, because 193384730489 - 2²⁰ = 193383681913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193384730479) 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, 5534192 + ... + 5569025.

It is an arithmetic number, because the mean of its divisors is an integer number (48348962781).

Almost surely, 2^193384730489 is an apocalyptic number.

It is an amenable number.

193384730489 is a deficient number, since it is larger than the sum of its proper divisors (11120635).

193384730489 is a wasteful number, since it uses less digits than its factorization.

193384730489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120634.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 193384730489 in words is "one hundred ninety-three billion, three hundred eighty-four million, seven hundred thirty thousand, four hundred eighty-nine".