13544121004 has 12 divisors (see below), whose sum is σ = 23703303904. Its totient is φ = 6771748464.

The previous prime is 13544121001. The next prime is 13544121011. The reversal of 13544121004 is 40012144531.

13544121004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13544121004.

It is not an unprimeable number, because it can be changed into a prime (13544121001) 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, 39229 + ... + 169195.

Almost surely, 2^13544121004 is an apocalyptic number.

It is an amenable number.

13544121004 is a deficient number, since it is larger than the sum of its proper divisors (10159182900).

13544121004 is a wasteful number, since it uses less digits than its factorization.

13544121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156024 (or 156022 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 13544121004 its reverse (40012144531), we get a palindrome (53556265535).

The spelling of 13544121004 in words is "thirteen billion, five hundred forty-four million, one hundred twenty-one thousand, four".