11433950928 has 160 divisors (see below), whose sum is σ = 33727662720. Its totient is φ = 3753661824.

The previous prime is 11433950921. The next prime is 11433950947. The reversal of 11433950928 is 82905933411.

It is a happy number.

11433950928 is a `hidden beast` number, since 114 + 3 + 3 + 9 + 509 + 28 = 666.

It is a super-2 number, since 2×11433950928² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11433950921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2342026 + ... + 2346902.

It is an arithmetic number, because the mean of its divisors is an integer number (210797892).

Almost surely, 2^11433950928 is an apocalyptic number.

11433950928 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 11433950928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16863831360).

11433950928 is an abundant number, since it is smaller than the sum of its proper divisors (22293711792).

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

11433950928 is an frugal number, since it uses more digits than its factorization.

11433950928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973 (or 4949 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

It can be divided in two parts, 11433 and 950928, that added together give a square (962361 = 981²).

The spelling of 11433950928 in words is "eleven billion, four hundred thirty-three million, nine hundred fifty thousand, nine hundred twenty-eight".