1729973370427 has 2 divisors, whose sum is σ = 1729973370428. Its totient is φ = 1729973370426.

The previous prime is 1729973370413. The next prime is 1729973370439. The reversal of 1729973370427 is 7240733799271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1729973370427 - 2⁷ = 1729973370299 is a prime.

It is not a weakly prime, because it can be changed into another prime (1729973370457) 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, 864986685213 + 864986685214.

It is an arithmetic number, because the mean of its divisors is an integer number (864986685214).

Almost surely, 2^{1729973370427} is an apocalyptic number.

1729973370427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1729973370427 is an equidigital number, since it uses as much as digits as its factorization.

1729973370427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28005264, while the sum is 61.

The spelling of 1729973370427 in words is "one trillion, seven hundred twenty-nine billion, nine hundred seventy-three million, three hundred seventy thousand, four hundred twenty-seven".