1128284333520 has 160 divisors (see below), whose sum is σ = 3557857996800. Its totient is φ = 295701914112.

The previous prime is 1128284333497. The next prime is 1128284333537. The reversal of 1128284333520 is 253334828211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77575369 + ... + 77589911.

It is an arithmetic number, because the mean of its divisors is an integer number (22236612480).

Almost surely, 2^{1128284333520} is an apocalyptic number.

1128284333520 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 1128284333520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778928998400).

1128284333520 is an abundant number, since it is smaller than the sum of its proper divisors (2429573663280).

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

1128284333520 is a wasteful number, since it uses less digits than its factorization.

1128284333520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20097 (or 20091 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 1128284333520 in words is "one trillion, one hundred twenty-eight billion, two hundred eighty-four million, three hundred thirty-three thousand, five hundred twenty".