195868663607 has 2 divisors, whose sum is σ = 195868663608. Its totient is φ = 195868663606.

The previous prime is 195868663567. The next prime is 195868663657. The reversal of 195868663607 is 706366868591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195868663607 - 2¹⁴ = 195868647223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195868663657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97934331803 + 97934331804.

It is an arithmetic number, because the mean of its divisors is an integer number (97934331804).

Almost surely, 2^195868663607 is an apocalyptic number.

195868663607 is a deficient number, since it is larger than the sum of its proper divisors (1).

195868663607 is an equidigital number, since it uses as much as digits as its factorization.

195868663607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 195868663607 in words is "one hundred ninety-five billion, eight hundred sixty-eight million, six hundred sixty-three thousand, six hundred seven".