1129644184128 has 56 divisors (see below), whose sum is σ = 2989407186528. Its totient is φ = 376477894656.

The previous prime is 1129644184091. The next prime is 1129644184129. The reversal of 1129644184128 is 8214814469211.

It is not an unprimeable number, because it can be changed into a prime (1129644184129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489975 + ... + 1580937.

It is an arithmetic number, because the mean of its divisors is an integer number (53382271188).

Almost surely, 2^{1129644184128} is an apocalyptic number.

It is an amenable number.

1129644184128 is an abundant number, since it is smaller than the sum of its proper divisors (1859763002400).

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

1129644184128 is a wasteful number, since it uses less digits than its factorization.

1129644184128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096371 (or 1096361 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The spelling of 1129644184128 in words is "one trillion, one hundred twenty-nine billion, six hundred forty-four million, one hundred eighty-four thousand, one hundred twenty-eight".