13703717421 has 6 divisors (see below), whose sum is σ = 19794258510. Its totient is φ = 9135811608.

The previous prime is 13703717399. The next prime is 13703717437. The reversal of 13703717421 is 12471730731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8151381225 + 5552336196 = 90285^2 + 74514^2 .

It is not a de Polignac number, because 13703717421 - 2¹¹ = 13703715373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13703717441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 761317626 + ... + 761317643.

It is an arithmetic number, because the mean of its divisors is an integer number (3299043085).

Almost surely, 2^13703717421 is an apocalyptic number.

It is an amenable number.

13703717421 is a deficient number, since it is larger than the sum of its proper divisors (6090541089).

13703717421 is a wasteful number, since it uses less digits than its factorization.

13703717421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522635275 (or 1522635272 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The spelling of 13703717421 in words is "thirteen billion, seven hundred three million, seven hundred seventeen thousand, four hundred twenty-one".