1974765730213 has 2 divisors, whose sum is σ = 1974765730214. Its totient is φ = 1974765730212.

The previous prime is 1974765730163. The next prime is 1974765730307. The reversal of 1974765730213 is 3120375674791.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1873662717124 + 101103013089 = 1368818^2 + 317967^2 .

It is a cyclic number.

It is not a de Polignac number, because 1974765730213 - 2²⁹ = 1974228859301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1974765730513) 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, 987382865106 + 987382865107.

It is an arithmetic number, because the mean of its divisors is an integer number (987382865107).

Almost surely, 2^{1974765730213} is an apocalyptic number.

It is an amenable number.

1974765730213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974765730213 is an equidigital number, since it uses as much as digits as its factorization.

1974765730213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6667920, while the sum is 55.

The spelling of 1974765730213 in words is "one trillion, nine hundred seventy-four billion, seven hundred sixty-five million, seven hundred thirty thousand, two hundred thirteen".