193342649647 has 4 divisors (see below), whose sum is σ = 220963028176. Its totient is φ = 165722271120.

The previous prime is 193342649597. The next prime is 193342649653. The reversal of 193342649647 is 746946243391.

193342649647 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.

It is a de Polignac number, because none of the positive numbers 2^k-193342649647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193342649591 and 193342649600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193342647647) 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, 13810189254 + ... + 13810189267.

It is an arithmetic number, because the mean of its divisors is an integer number (55240757044).

Almost surely, 2^193342649647 is an apocalyptic number.

193342649647 is a deficient number, since it is larger than the sum of its proper divisors (27620378529).

193342649647 is an equidigital number, since it uses as much as digits as its factorization.

193342649647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27620378528.

The product of its digits is 23514624, while the sum is 58.

The spelling of 193342649647 in words is "one hundred ninety-three billion, three hundred forty-two million, six hundred forty-nine thousand, six hundred forty-seven".