1128491810208 has 216 divisors, whose sum is σ = 3720015752544. Its totient is φ = 317882154240.

The previous prime is 1128491810207. The next prime is 1128491810227. The reversal of 1128491810208 is 8020181948211.

It is a happy number.

1128491810208 is a `hidden beast` number, since 1 + 1 + 284 + 91 + 81 + 0 + 208 = 666.

It is not an unprimeable number, because it can be changed into a prime (1128491810203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10107135 + ... + 10218177.

Almost surely, 2^{1128491810208} is an apocalyptic number.

1128491810208 is a gapful number since it is divisible by the number (18) 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 1128491810208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860007876272).

1128491810208 is an abundant number, since it is smaller than the sum of its proper divisors (2591523942336).

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

1128491810208 is a wasteful number, since it uses less digits than its factorization.

1128491810208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111208 (or 111126 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The spelling of 1128491810208 in words is "one trillion, one hundred twenty-eight billion, four hundred ninety-one million, eight hundred ten thousand, two hundred eight".