194694153419573 has 2 divisors, whose sum is σ = 194694153419574. Its totient is φ = 194694153419572.

The previous prime is 194694153419509. The next prime is 194694153419581. The reversal of 194694153419573 is 375914351496491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192282540093604 + 2411613325969 = 13866598^2 + 1552937^2 .

It is a cyclic number.

It is not a de Polignac number, because 194694153419573 - 2⁶ = 194694153419509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194694153419497 and 194694153419506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194694153419273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97347076709786 + 97347076709787.

It is an arithmetic number, because the mean of its divisors is an integer number (97347076709787).

Almost surely, 2^{194694153419573} is an apocalyptic number.

It is an amenable number.

194694153419573 is a deficient number, since it is larger than the sum of its proper divisors (1).

194694153419573 is an equidigital number, since it uses as much as digits as its factorization.

194694153419573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 440899200, while the sum is 71.

The spelling of 194694153419573 in words is "one hundred ninety-four trillion, six hundred ninety-four billion, one hundred fifty-three million, four hundred nineteen thousand, five hundred seventy-three".