1855231814112 has 96 divisors (see below), whose sum is σ = 5042269983744. Its totient is φ = 596653516800.

The previous prime is 1855231814071. The next prime is 1855231814141. The reversal of 1855231814112 is 2114181325581.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43368 + ... + 1926744.

It is an arithmetic number, because the mean of its divisors is an integer number (52523645664).

Almost surely, 2^{1855231814112} is an apocalyptic number.

1855231814112 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 1855231814112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2521134991872).

1855231814112 is an abundant number, since it is smaller than the sum of its proper divisors (3187038169632).

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

1855231814112 is a wasteful number, since it uses less digits than its factorization.

1855231814112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883752 (or 1883744 counting only the distinct ones).

The product of its digits is 76800, while the sum is 42.

The spelling of 1855231814112 in words is "one trillion, eight hundred fifty-five billion, two hundred thirty-one million, eight hundred fourteen thousand, one hundred twelve".