13518594544 has 160 divisors (see below), whose sum is σ = 34493903360. Its totient is φ = 4982860800.

The previous prime is 13518594541. The next prime is 13518594581. The reversal of 13518594544 is 44549581531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13518594541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1683499 + ... + 1691509.

It is an arithmetic number, because the mean of its divisors is an integer number (215586896).

Almost surely, 2^13518594544 is an apocalyptic number.

13518594544 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 13518594544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17246951680).

13518594544 is an abundant number, since it is smaller than the sum of its proper divisors (20975308816).

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

13518594544 is a wasteful number, since it uses less digits than its factorization.

13518594544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8119 (or 8113 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 49.

The spelling of 13518594544 in words is "thirteen billion, five hundred eighteen million, five hundred ninety-four thousand, five hundred forty-four".