13444544000 has 80 divisors (see below), whose sum is σ = 33524970336. Its totient is φ = 5377792000.

The previous prime is 13444543949. The next prime is 13444544051. The reversal of 13444544000 is 44544431.

It is an interprime number because it is at equal distance from previous prime (13444543949) and next prime (13444544051).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41036 + ... + 169035.

Almost surely, 2^13444544000 is an apocalyptic number.

13444544000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444544000 is an abundant number, since it is smaller than the sum of its proper divisors (20080426336).

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

13444544000 is an frugal number, since it uses more digits than its factorization.

13444544000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210104 (or 210078 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The spelling of 13444544000 in words is "thirteen billion, four hundred forty-four million, five hundred forty-four thousand".