1728697420801 has 8 divisors (see below), whose sum is σ = 1959656995520. Its totient is φ = 1511735396112.

The previous prime is 1728697420759. The next prime is 1728697420823. The reversal of 1728697420801 is 1080247968271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1728697420801 - 2²⁹ = 1728160549889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1728697420501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3499387245 + ... + 3499387738.

It is an arithmetic number, because the mean of its divisors is an integer number (244957124440).

Almost surely, 2^{1728697420801} is an apocalyptic number.

It is an amenable number.

1728697420801 is a deficient number, since it is larger than the sum of its proper divisors (230959574719).

1728697420801 is a wasteful number, since it uses less digits than its factorization.

1728697420801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998775015.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 1728697420801 in words is "one trillion, seven hundred twenty-eight billion, six hundred ninety-seven million, four hundred twenty thousand, eight hundred one".