1091741843808 has 720 divisors, whose sum is σ = 4098996017424. Its totient is φ = 281867765760.

The previous prime is 1091741843737. The next prime is 1091741843821. The reversal of 1091741843808 is 8083481471901.

1091741843808 is a `hidden beast` number, since 10 + 9 + 1 + 74 + 184 + 380 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 241693966 + ... + 241698482.

Almost surely, 2^{1091741843808} is an apocalyptic number.

1091741843808 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 1091741843808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049498008712).

1091741843808 is an abundant number, since it is smaller than the sum of its proper divisors (3007254173616).

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

1091741843808 is a wasteful number, since it uses less digits than its factorization.

1091741843808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737 (or 4713 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 1091741843808 in words is "one trillion, ninety-one billion, seven hundred forty-one million, eight hundred forty-three thousand, eight hundred eight".