1128944889276 has 24 divisors (see below), whose sum is σ = 2634222267600. Its totient is φ = 376312459392.

The previous prime is 1128944889257. The next prime is 1128944889329. The reversal of 1128944889276 is 6729884498211.

It is a self number, because there is not a number n which added to its sum of digits gives 1128944889276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2821750 + ... + 3196898.

It is an arithmetic number, because the mean of its divisors is an integer number (109759261150).

Almost surely, 2^{1128944889276} is an apocalyptic number.

It is an amenable number.

1128944889276 is an abundant number, since it is smaller than the sum of its proper divisors (1505277378324).

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

1128944889276 is a wasteful number, since it uses less digits than its factorization.

1128944889276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625933 (or 625931 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 69.

The spelling of 1128944889276 in words is "one trillion, one hundred twenty-eight billion, nine hundred forty-four million, eight hundred eighty-nine thousand, two hundred seventy-six".