1712366732821 has 2 divisors, whose sum is σ = 1712366732822. Its totient is φ = 1712366732820.

The previous prime is 1712366732803. The next prime is 1712366732831. The reversal of 1712366732821 is 1282376632171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987290640625 + 725076092196 = 993625^2 + 851514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1712366732821 - 2²⁹ = 1711829861909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1712366732831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 856183366410 + 856183366411.

It is an arithmetic number, because the mean of its divisors is an integer number (856183366411).

Almost surely, 2^{1712366732821} is an apocalyptic number.

It is an amenable number.

1712366732821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1712366732821 is an equidigital number, since it uses as much as digits as its factorization.

1712366732821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The spelling of 1712366732821 in words is "one trillion, seven hundred twelve billion, three hundred sixty-six million, seven hundred thirty-two thousand, eight hundred twenty-one".