13544344044 has 480 divisors, whose sum is σ = 46336131072. Its totient is φ = 3347568000.

The previous prime is 13544344043. The next prime is 13544344067. The reversal of 13544344044 is 44044344531.

13544344044 is a `hidden beast` number, since 1 + 3 + 544 + 34 + 40 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13544344043) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 64191099 + ... + 64191309.

Almost surely, 2^13544344044 is an apocalyptic number.

13544344044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13544344044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23168065536).

13544344044 is an abundant number, since it is smaller than the sum of its proper divisors (32791787028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13544344044 is a wasteful number, since it uses less digits than its factorization.

13544344044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 13544344044 its reverse (44044344531), we get a palindrome (57588688575).

The spelling of 13544344044 in words is "thirteen billion, five hundred forty-four million, three hundred forty-four thousand, forty-four".