1811485116672 has 576 divisors, whose sum is σ = 6322167742464. Its totient is φ = 446472069120.

The previous prime is 1811485116643. The next prime is 1811485116673. The reversal of 1811485116672 is 2766115841181.

It is not an unprimeable number, because it can be changed into a prime (1811485116673) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 172731013 + ... + 172741499.

It is an arithmetic number, because the mean of its divisors is an integer number (10975985664).

Almost surely, 2^{1811485116672} is an apocalyptic number.

1811485116672 is a gapful number since it is divisible by the number (12) 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 1811485116672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3161083871232).

1811485116672 is an abundant number, since it is smaller than the sum of its proper divisors (4510682625792).

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

1811485116672 is a wasteful number, since it uses less digits than its factorization.

1811485116672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10674 (or 10660 counting only the distinct ones).

The product of its digits is 645120, while the sum is 51.

The spelling of 1811485116672 in words is "one trillion, eight hundred eleven billion, four hundred eighty-five million, one hundred sixteen thousand, six hundred seventy-two".