13443691248 has 180 divisors, whose sum is σ = 41410948488. Its totient is φ = 4047264000.

The previous prime is 13443691231. The next prime is 13443691267. The reversal of 13443691248 is 84219634431.

13443691248 is a `hidden beast` number, since 1 + 3 + 44 + 369 + 1 + 248 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4133623 + ... + 4136873.

Almost surely, 2^13443691248 is an apocalyptic number.

13443691248 is a gapful number since it is divisible by the number (18) 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 13443691248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20705474244).

13443691248 is an abundant number, since it is smaller than the sum of its proper divisors (27967257240).

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

13443691248 is a wasteful number, since it uses less digits than its factorization.

13443691248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372 (or 3316 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The spelling of 13443691248 in words is "thirteen billion, four hundred forty-three million, six hundred ninety-one thousand, two hundred forty-eight".