1806127844864 has 480 divisors, whose sum is σ = 4589849088000. Its totient is φ = 708887531520.

The previous prime is 1806127844861. The next prime is 1806127844881. The reversal of 1806127844864 is 4684487216081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806127844861) 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 47 ways as a sum of consecutive naturals, for example, 1965318197 + ... + 1965319115.

It is an arithmetic number, because the mean of its divisors is an integer number (9562185600).

Almost surely, 2^{1806127844864} is an apocalyptic number.

1806127844864 is a gapful number since it is divisible by the number (14) 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 1806127844864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294924544000).

1806127844864 is an abundant number, since it is smaller than the sum of its proper divisors (2783721243136).

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

1806127844864 is an frugal number, since it uses more digits than its factorization.

1806127844864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 59.

The spelling of 1806127844864 in words is "one trillion, eight hundred six billion, one hundred twenty-seven million, eight hundred forty-four thousand, eight hundred sixty-four".