1970780775833 has 2 divisors, whose sum is σ = 1970780775834. Its totient is φ = 1970780775832.

The previous prime is 1970780775809. The next prime is 1970780775839. The reversal of 1970780775833 is 3385770870791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962697327369 + 8083448464 = 1400963^2 + 89908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970780775833 - 2²⁶ = 1970713666969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1970780775833.

It is not a weakly prime, because it can be changed into another prime (1970780775839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985390387916 + 985390387917.

It is an arithmetic number, because the mean of its divisors is an integer number (985390387917).

Almost surely, 2^{1970780775833} is an apocalyptic number.

It is an amenable number.

1970780775833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970780775833 is an equidigital number, since it uses as much as digits as its factorization.

1970780775833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62233920, while the sum is 65.

The spelling of 1970780775833 in words is "one trillion, nine hundred seventy billion, seven hundred eighty million, seven hundred seventy-five thousand, eight hundred thirty-three".