1729000018849 has 16 divisors (see below), whose sum is σ = 1808106983424. Its totient is φ = 1650222090000.

The previous prime is 1729000018841. The next prime is 1729000018883. The reversal of 1729000018849 is 9488100009271.

It is a cyclic number.

It is not a de Polignac number, because 1729000018849 - 2³ = 1729000018841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1729000018841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79479724 + ... + 79501474.

It is an arithmetic number, because the mean of its divisors is an integer number (113006686464).

Almost surely, 2^{1729000018849} is an apocalyptic number.

It is an amenable number.

1729000018849 is a deficient number, since it is larger than the sum of its proper divisors (79106964575).

1729000018849 is a wasteful number, since it uses less digits than its factorization.

1729000018849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29148.

The product of its (nonzero) digits is 290304, while the sum is 49.

The spelling of 1729000018849 in words is "one trillion, seven hundred twenty-nine billion, eighteen thousand, eight hundred forty-nine".