16801794709439 has 4 divisors (see below), whose sum is σ = 16801899721656. Its totient is φ = 16801689697224.

The previous prime is 16801794709423. The next prime is 16801794709457. The reversal of 16801794709439 is 93490749710861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16801794709439 - 2⁴ = 16801794709423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16801794709459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52265744 + ... + 52586229.

It is an arithmetic number, because the mean of its divisors is an integer number (4200474930414).

Almost surely, 2^{16801794709439} is an apocalyptic number.

16801794709439 is a deficient number, since it is larger than the sum of its proper divisors (105012217).

16801794709439 is a wasteful number, since it uses less digits than its factorization.

16801794709439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105012216.

The product of its (nonzero) digits is 82301184, while the sum is 68.

The spelling of 16801794709439 in words is "sixteen trillion, eight hundred one billion, seven hundred ninety-four million, seven hundred nine thousand, four hundred thirty-nine".