195834533261 has 2 divisors, whose sum is σ = 195834533262. Its totient is φ = 195834533260.

The previous prime is 195834533249. The next prime is 195834533269. The reversal of 195834533261 is 162335438591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184319955625 + 11514577636 = 429325^2 + 107306^2 .

It is a cyclic number.

It is not a de Polignac number, because 195834533261 - 2⁶ = 195834533197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195834533269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97917266630 + 97917266631.

It is an arithmetic number, because the mean of its divisors is an integer number (97917266631).

Almost surely, 2^195834533261 is an apocalyptic number.

It is an amenable number.

195834533261 is a deficient number, since it is larger than the sum of its proper divisors (1).

195834533261 is an equidigital number, since it uses as much as digits as its factorization.

195834533261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 50.

The spelling of 195834533261 in words is "one hundred ninety-five billion, eight hundred thirty-four million, five hundred thirty-three thousand, two hundred sixty-one".