1805386000140 has 288 divisors, whose sum is σ = 5843840184000. Its totient is φ = 450285889536.

The previous prime is 1805386000129. The next prime is 1805386000141. The reversal of 1805386000140 is 410006835081.

1805386000140 is a `hidden beast` number, since 1 + 8 + 0 + 5 + 3 + 8 + 600 + 0 + 1 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1805386000095 and 1805386000104.

It is not an unprimeable number, because it can be changed into a prime (1805386000141) 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 95 ways as a sum of consecutive naturals, for example, 44208651 + ... + 44249469.

It is an arithmetic number, because the mean of its divisors is an integer number (20291111750).

Almost surely, 2^{1805386000140} is an apocalyptic number.

1805386000140 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 1805386000140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2921920092000).

1805386000140 is an abundant number, since it is smaller than the sum of its proper divisors (4038454183860).

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

1805386000140 is a wasteful number, since it uses less digits than its factorization.

1805386000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41129 (or 41124 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 1805386000140 in words is "one trillion, eight hundred five billion, three hundred eighty-six million, one hundred forty", and thus it is an aban number.