1109478915328 has 144 divisors (see below), whose sum is σ = 2619584513280. Its totient is φ = 458865082368.

The previous prime is 1109478915289. The next prime is 1109478915329. The reversal of 1109478915328 is 8235198749011.

It is a super-3 number, since 3×1109478915328³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109478915329) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 138386776 + ... + 138394792.

It is an arithmetic number, because the mean of its divisors is an integer number (18191559120).

Almost surely, 2^{1109478915328} 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 1109478915328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309792256640).

1109478915328 is an abundant number, since it is smaller than the sum of its proper divisors (1510105597952).

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

1109478915328 is an equidigital number, since it uses as much as digits as its factorization.

1109478915328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10732 (or 10718 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 1109478915328 in words is "one trillion, one hundred nine billion, four hundred seventy-eight million, nine hundred fifteen thousand, three hundred twenty-eight".