11443811328 has 88 divisors (see below), whose sum is σ = 33891114560. Its totient is φ = 3814594560.

The previous prime is 11443811317. The next prime is 11443811429. The reversal of 11443811328 is 82311834411.

11443811328 is a `hidden beast` number, since 1 + 1 + 443 + 81 + 132 + 8 = 666.

It is a super-2 number, since 2×11443811328² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 11443811292 and 11443811301.

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, 179308 + ... + 234603.

Almost surely, 2^11443811328 is an apocalyptic number.

11443811328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11443811328 is an abundant number, since it is smaller than the sum of its proper divisors (22447303232).

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

11443811328 is an equidigital number, since it uses as much as digits as its factorization.

11443811328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413940 (or 413916 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The spelling of 11443811328 in words is "eleven billion, four hundred forty-three million, eight hundred eleven thousand, three hundred twenty-eight".