13443238536 has 512 divisors, whose sum is σ = 45519667200. Its totient is φ = 3211591680.

The previous prime is 13443238483. The next prime is 13443238577. The reversal of 13443238536 is 63583234431.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 138590040 + ... + 138590136.

It is an arithmetic number, because the mean of its divisors is an integer number (88905600).

Almost surely, 2^13443238536 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 13443238536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22759833600).

13443238536 is an abundant number, since it is smaller than the sum of its proper divisors (32076428664).

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

13443238536 is a wasteful number, since it uses less digits than its factorization.

13443238536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 265 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The spelling of 13443238536 in words is "thirteen billion, four hundred forty-three million, two hundred thirty-eight thousand, five hundred thirty-six".