2050688195117 has 2 divisors, whose sum is σ = 2050688195118. Its totient is φ = 2050688195116.

The previous prime is 2050688195099. The next prime is 2050688195167. The reversal of 2050688195117 is 7115918860502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1597407820996 + 453280374121 = 1263886^2 + 673261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2050688195117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2050688195167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025344097558 + 1025344097559.

It is an arithmetic number, because the mean of its divisors is an integer number (1025344097559).

Almost surely, 2^{2050688195117} is an apocalyptic number.

It is an amenable number.

2050688195117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050688195117 is an equidigital number, since it uses as much as digits as its factorization.

2050688195117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 53.

The spelling of 2050688195117 in words is "two trillion, fifty billion, six hundred eighty-eight million, one hundred ninety-five thousand, one hundred seventeen".