1128944889275 has 12 divisors (see below), whose sum is σ = 1599876186192. Its totient is φ = 774133638240.

The previous prime is 1128944889257. The next prime is 1128944889329. The reversal of 1128944889275 is 5729884498211.

It is not a de Polignac number, because 1128944889275 - 2¹⁰ = 1128944888251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3225556652 + ... + 3225557001.

It is an arithmetic number, because the mean of its divisors is an integer number (133323015516).

Almost surely, 2^{1128944889275} is an apocalyptic number.

1128944889275 is a deficient number, since it is larger than the sum of its proper divisors (470931296917).

1128944889275 is an equidigital number, since it uses as much as digits as its factorization.

1128944889275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451113670 (or 6451113665 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 68.

The spelling of 1128944889275 in words is "one trillion, one hundred twenty-eight billion, nine hundred forty-four million, eight hundred eighty-nine thousand, two hundred seventy-five".