13584943381 has 4 divisors (see below), whose sum is σ = 13596747264. Its totient is φ = 13573139500.

The previous prime is 13584943369. The next prime is 13584943417. The reversal of 13584943381 is 18334948531.

13584943381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13584943381 - 2²⁹ = 13048072469 is a prime.

It is a super-2 number, since 2×13584943381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13584943301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5900215 + ... + 5902516.

It is an arithmetic number, because the mean of its divisors is an integer number (3399186816).

Almost surely, 2^13584943381 is an apocalyptic number.

It is an amenable number.

13584943381 is a deficient number, since it is larger than the sum of its proper divisors (11803883).

13584943381 is a wasteful number, since it uses less digits than its factorization.

13584943381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11803882.

The product of its digits is 1244160, while the sum is 49.

The spelling of 13584943381 in words is "thirteen billion, five hundred eighty-four million, nine hundred forty-three thousand, three hundred eighty-one".