1968956208017 has 2 divisors, whose sum is σ = 1968956208018. Its totient is φ = 1968956208016.

The previous prime is 1968956207969. The next prime is 1968956208031. The reversal of 1968956208017 is 7108026598691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1951899586816 + 17056621201 = 1397104^2 + 130601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1968956208017 - 2¹⁰ = 1968956206993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1968956208067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984478104008 + 984478104009.

It is an arithmetic number, because the mean of its divisors is an integer number (984478104009).

Almost surely, 2^{1968956208017} is an apocalyptic number.

It is an amenable number.

1968956208017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968956208017 is an equidigital number, since it uses as much as digits as its factorization.

1968956208017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 1968956208017 in words is "one trillion, nine hundred sixty-eight billion, nine hundred fifty-six million, two hundred eight thousand, seventeen".