13705387922 has 6 divisors (see below), whose sum is σ = 20558330229. Its totient is φ = 6852611180.

The previous prime is 13705387921. The next prime is 13705387931. The reversal of 13705387922 is 22978350731.

13705387922 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11170164721 + 2535223201 = 105689^2 + 50351^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=82781.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13705387921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 124172 + ... + 206952.

Almost surely, 2^13705387922 is an apocalyptic number.

13705387922 is a deficient number, since it is larger than the sum of its proper divisors (6852942307).

13705387922 is an frugal number, since it uses more digits than its factorization.

13705387922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165564 (or 82783 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 13705387922 in words is "thirteen billion, seven hundred five million, three hundred eighty-seven thousand, nine hundred twenty-two".