1129475756800 has 432 divisors, whose sum is σ = 3107821711680. Its totient is φ = 404220805120.

The previous prime is 1129475756779. The next prime is 1129475756909. The reversal of 1129475756800 is 86575749211.

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 47 ways as a sum of consecutive naturals, for example, 432913896 + ... + 432916504.

It is an arithmetic number, because the mean of its divisors is an integer number (7194031740).

Almost surely, 2^{1129475756800} is an apocalyptic number.

1129475756800 is a gapful number since it is divisible by the number (10) 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 1129475756800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553910855840).

1129475756800 is an abundant number, since it is smaller than the sum of its proper divisors (1978345954880).

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

1129475756800 is a wasteful number, since it uses less digits than its factorization.

1129475756800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 1129475756800 in words is "one trillion, one hundred twenty-nine billion, four hundred seventy-five million, seven hundred fifty-six thousand, eight hundred".