193196919313 has 2 divisors, whose sum is σ = 193196919314. Its totient is φ = 193196919312.

The previous prime is 193196919301. The next prime is 193196919353. The reversal of 193196919313 is 313919691391.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110657353104 + 82539566209 = 332652^2 + 287297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193196919313 is a prime.

It is not a weakly prime, because it can be changed into another prime (193196919353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96598459656 + 96598459657.

It is an arithmetic number, because the mean of its divisors is an integer number (96598459657).

Almost surely, 2^193196919313 is an apocalyptic number.

It is an amenable number.

193196919313 is a deficient number, since it is larger than the sum of its proper divisors (1).

193196919313 is an equidigital number, since it uses as much as digits as its factorization.

193196919313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1062882, while the sum is 55.

The spelling of 193196919313 in words is "one hundred ninety-three billion, one hundred ninety-six million, nine hundred nineteen thousand, three hundred thirteen".