16194854593 has 2 divisors, whose sum is σ = 16194854594. Its totient is φ = 16194854592.

The previous prime is 16194854563. The next prime is 16194854597. The reversal of 16194854593 is 39545849161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15304906369 + 889948224 = 123713^2 + 29832^2 .

It is a cyclic number.

It is not a de Polignac number, because 16194854593 - 2²⁵ = 16161300161 is a prime.

It is not a weakly prime, because it can be changed into another prime (16194854597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8097427296 + 8097427297.

It is an arithmetic number, because the mean of its divisors is an integer number (8097427297).

Almost surely, 2^16194854593 is an apocalyptic number.

It is an amenable number.

16194854593 is a deficient number, since it is larger than the sum of its proper divisors (1).

16194854593 is an equidigital number, since it uses as much as digits as its factorization.

16194854593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 55.

The spelling of 16194854593 in words is "sixteen billion, one hundred ninety-four million, eight hundred fifty-four thousand, five hundred ninety-three".