195710778461701 has 2 divisors, whose sum is σ = 195710778461702. Its totient is φ = 195710778461700.

The previous prime is 195710778461599. The next prime is 195710778461741. The reversal of 195710778461701 is 107164877017591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110830045932225 + 84880732529476 = 10527585^2 + 9213074^2 .

It is a cyclic number.

It is not a de Polignac number, because 195710778461701 - 2¹¹ = 195710778459653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195710778461741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97855389230850 + 97855389230851.

It is an arithmetic number, because the mean of its divisors is an integer number (97855389230851).

Almost surely, 2^{195710778461701} is an apocalyptic number.

It is an amenable number.

195710778461701 is a deficient number, since it is larger than the sum of its proper divisors (1).

195710778461701 is an equidigital number, since it uses as much as digits as its factorization.

195710778461701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20744640, while the sum is 64.

The spelling of 195710778461701 in words is "one hundred ninety-five trillion, seven hundred ten billion, seven hundred seventy-eight million, four hundred sixty-one thousand, seven hundred one".