1081393822080 has 2048 divisors, whose sum is σ = 4895686656000. Its totient is φ = 221560012800.

The previous prime is 1081393822039. The next prime is 1081393822127. The reversal of 1081393822080 is 802283931801.

It is a happy number.

1081393822080 is a `hidden beast` number, since 10 + 81 + 393 + 82 + 20 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 255 ways as a sum of consecutive naturals, for example, 1455442189 + ... + 1455442931.

It is an arithmetic number, because the mean of its divisors is an integer number (2390472000).

Almost surely, 2^{1081393822080} is an apocalyptic number.

1081393822080 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 1081393822080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2447843328000).

1081393822080 is an abundant number, since it is smaller than the sum of its proper divisors (3814292833920).

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

1081393822080 is a wasteful number, since it uses less digits than its factorization.

1081393822080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 1081393822080 in words is "one trillion, eighty-one billion, three hundred ninety-three million, eight hundred twenty-two thousand, eighty".