1729000018797 has 16 divisors (see below), whose sum is σ = 2310898652160. Its totient is φ = 1149885802800.

The previous prime is 1729000018793. The next prime is 1729000018807. The reversal of 1729000018797 is 7978100009271.

It is a happy number.

It is not a de Polignac number, because 1729000018797 - 2² = 1729000018793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729000018793) 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, 3714654 + ... + 4154112.

It is an arithmetic number, because the mean of its divisors is an integer number (144431165760).

Almost surely, 2^{1729000018797} is an apocalyptic number.

It is an amenable number.

1729000018797 is a deficient number, since it is larger than the sum of its proper divisors (581898633363).

1729000018797 is a wasteful number, since it uses less digits than its factorization.

1729000018797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442624.

The product of its (nonzero) digits is 444528, while the sum is 51.

The spelling of 1729000018797 in words is "one trillion, seven hundred twenty-nine billion, eighteen thousand, seven hundred ninety-seven".