194323695443 has 2 divisors, whose sum is σ = 194323695444. Its totient is φ = 194323695442.

The previous prime is 194323695431. The next prime is 194323695491. The reversal of 194323695443 is 344596323491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194323695443 - 2⁸ = 194323695187 is a prime.

It is a super-2 number, since 2×194323695443² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (194323695403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97161847721 + 97161847722.

It is an arithmetic number, because the mean of its divisors is an integer number (97161847722).

Almost surely, 2^194323695443 is an apocalyptic number.

194323695443 is a deficient number, since it is larger than the sum of its proper divisors (1).

194323695443 is an equidigital number, since it uses as much as digits as its factorization.

194323695443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 53.

The spelling of 194323695443 in words is "one hundred ninety-four billion, three hundred twenty-three million, six hundred ninety-five thousand, four hundred forty-three".