13705721859 has 8 divisors (see below), whose sum is σ = 18720010512. Its totient is φ = 8914290560.

The previous prime is 13705721851. The next prime is 13705721899. The reversal of 13705721859 is 95812750731.

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

It is a cyclic number.

It is not a de Polignac number, because 13705721859 - 2³ = 13705721851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13705721851) 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, 55714194 + ... + 55714439.

It is an arithmetic number, because the mean of its divisors is an integer number (2340001314).

Almost surely, 2^13705721859 is an apocalyptic number.

13705721859 is a deficient number, since it is larger than the sum of its proper divisors (5014288653).

13705721859 is a wasteful number, since it uses less digits than its factorization.

13705721859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111428677.

The product of its (nonzero) digits is 529200, while the sum is 48.

The spelling of 13705721859 in words is "thirteen billion, seven hundred five million, seven hundred twenty-one thousand, eight hundred fifty-nine".