193217107894043 has 2 divisors, whose sum is σ = 193217107894044. Its totient is φ = 193217107894042.

The previous prime is 193217107894039. The next prime is 193217107894061. The reversal of 193217107894043 is 340498701712391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 193217107894043 - 2² = 193217107894039 is a prime.

It is not a weakly prime, because it can be changed into another prime (193217107891043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96608553947021 + 96608553947022.

It is an arithmetic number, because the mean of its divisors is an integer number (96608553947022).

Almost surely, 2^{193217107894043} is an apocalyptic number.

193217107894043 is a deficient number, since it is larger than the sum of its proper divisors (1).

193217107894043 is an equidigital number, since it uses as much as digits as its factorization.

193217107894043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 193217107894043 in words is "one hundred ninety-three trillion, two hundred seventeen billion, one hundred seven million, eight hundred ninety-four thousand, forty-three".