1768576128197 has 2 divisors, whose sum is σ = 1768576128198. Its totient is φ = 1768576128196.

The previous prime is 1768576128191. The next prime is 1768576128269. The reversal of 1768576128197 is 7918216758671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1669473310561 + 99102817636 = 1292081^2 + 314806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1768576128197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1768576128191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884288064098 + 884288064099.

It is an arithmetic number, because the mean of its divisors is an integer number (884288064099).

Almost surely, 2^{1768576128197} is an apocalyptic number.

It is an amenable number.

1768576128197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768576128197 is an equidigital number, since it uses as much as digits as its factorization.

1768576128197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71124480, while the sum is 68.

The spelling of 1768576128197 in words is "one trillion, seven hundred sixty-eight billion, five hundred seventy-six million, one hundred twenty-eight thousand, one hundred ninety-seven".