13605426523 has 8 divisors (see below), whose sum is σ = 14678791568. Its totient is φ = 12535889184.

The previous prime is 13605426521. The next prime is 13605426559. The reversal of 13605426523 is 32562450631.

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

It is not a de Polignac number, because 13605426523 - 2¹ = 13605426521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13605426521) 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 7 ways as a sum of consecutive naturals, for example, 949536 + ... + 963757.

It is an arithmetic number, because the mean of its divisors is an integer number (1834848946).

Almost surely, 2^13605426523 is an apocalyptic number.

13605426523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13605426523 is a deficient number, since it is larger than the sum of its proper divisors (1073365045).

13605426523 is a wasteful number, since it uses less digits than its factorization.

13605426523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913853.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 13605426523 in words is "thirteen billion, six hundred five million, four hundred twenty-six thousand, five hundred twenty-three".