1684174927429 has 2 divisors, whose sum is σ = 1684174927430. Its totient is φ = 1684174927428.

The previous prime is 1684174927423. The next prime is 1684174927469. The reversal of 1684174927429 is 9247294714861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1679123556100 + 5051371329 = 1295810^2 + 71073^2 .

It is a cyclic number.

It is not a de Polignac number, because 1684174927429 - 2¹⁹ = 1684174403141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1684174927423) 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, 842087463714 + 842087463715.

It is an arithmetic number, because the mean of its divisors is an integer number (842087463715).

Almost surely, 2^{1684174927429} is an apocalyptic number.

It is an amenable number.

1684174927429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1684174927429 is an equidigital number, since it uses as much as digits as its factorization.

1684174927429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 64.

The spelling of 1684174927429 in words is "one trillion, six hundred eighty-four billion, one hundred seventy-four million, nine hundred twenty-seven thousand, four hundred twenty-nine".