13544540944 has 120 divisors (see below), whose sum is σ = 31260409920. Its totient is φ = 5630688000.

The previous prime is 13544540927. The next prime is 13544541011. The reversal of 13544540944 is 44904544531.

It is a super-2 number, since 2×13544540944² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13544540944.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1838869 + ... + 1846219.

It is an arithmetic number, because the mean of its divisors is an integer number (260503416).

Almost surely, 2^13544540944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13544540944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15630204960).

13544540944 is an abundant number, since it is smaller than the sum of its proper divisors (17715868976).

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

13544540944 is a wasteful number, since it uses less digits than its factorization.

13544540944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7437 (or 7412 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 13544540944 in words is "thirteen billion, five hundred forty-four million, five hundred forty thousand, nine hundred forty-four".