195553673269 has 2 divisors, whose sum is σ = 195553673270. Its totient is φ = 195553673268.

The previous prime is 195553673251. The next prime is 195553673309. The reversal of 195553673269 is 962376355591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194889580369 + 664092900 = 441463^2 + 25770^2 .

It is a cyclic number.

It is not a de Polignac number, because 195553673269 - 2⁷ = 195553673141 is a prime.

It is a super-2 number, since 2×195553673269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195553673069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97776836634 + 97776836635.

It is an arithmetic number, because the mean of its divisors is an integer number (97776836635).

Almost surely, 2^195553673269 is an apocalyptic number.

It is an amenable number.

195553673269 is a deficient number, since it is larger than the sum of its proper divisors (1).

195553673269 is an equidigital number, since it uses as much as digits as its factorization.

195553673269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45927000, while the sum is 61.

The spelling of 195553673269 in words is "one hundred ninety-five billion, five hundred fifty-three million, six hundred seventy-three thousand, two hundred sixty-nine".