193394706691 has 2 divisors, whose sum is σ = 193394706692. Its totient is φ = 193394706690.

The previous prime is 193394706683. The next prime is 193394706721. The reversal of 193394706691 is 196607493391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 193394706691 - 2³ = 193394706683 is a prime.

It is not a weakly prime, because it can be changed into another prime (193394706601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96697353345 + 96697353346.

It is an arithmetic number, because the mean of its divisors is an integer number (96697353346).

Almost surely, 2^193394706691 is an apocalyptic number.

193394706691 is a deficient number, since it is larger than the sum of its proper divisors (1).

193394706691 is an equidigital number, since it uses as much as digits as its factorization.

193394706691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 58.

The spelling of 193394706691 in words is "one hundred ninety-three billion, three hundred ninety-four million, seven hundred six thousand, six hundred ninety-one".