1729000018841 has 2 divisors, whose sum is σ = 1729000018842. Its totient is φ = 1729000018840.

The previous prime is 1729000018807. The next prime is 1729000018883. The reversal of 1729000018841 is 1488100009271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1698382368400 + 30617650441 = 1303220^2 + 174979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1729000018841 - 2⁶ = 1729000018777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1729000018891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864500009420 + 864500009421.

It is an arithmetic number, because the mean of its divisors is an integer number (864500009421).

Almost surely, 2^{1729000018841} is an apocalyptic number.

It is an amenable number.

1729000018841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1729000018841 is an equidigital number, since it uses as much as digits as its factorization.

1729000018841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 41.

The spelling of 1729000018841 in words is "one trillion, seven hundred twenty-nine billion, eighteen thousand, eight hundred forty-one".