195196959761 has 2 divisors, whose sum is σ = 195196959762. Its totient is φ = 195196959760.

The previous prime is 195196959673. The next prime is 195196959779. The reversal of 195196959761 is 167959691591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190515663361 + 4681296400 = 436481^2 + 68420^2 .

It is a cyclic number.

It is not a de Polignac number, because 195196959761 - 2²² = 195192765457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195196959691 and 195196959700.

It is not a weakly prime, because it can be changed into another prime (195196959161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97598479880 + 97598479881.

It is an arithmetic number, because the mean of its divisors is an integer number (97598479881).

Almost surely, 2^195196959761 is an apocalyptic number.

It is an amenable number.

195196959761 is a deficient number, since it is larger than the sum of its proper divisors (1).

195196959761 is an equidigital number, since it uses as much as digits as its factorization.

195196959761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41334300, while the sum is 68.

The spelling of 195196959761 in words is "one hundred ninety-five billion, one hundred ninety-six million, nine hundred fifty-nine thousand, seven hundred sixty-one".