1838489850000 has 360 divisors, whose sum is σ = 6451062980544. Its totient is φ = 488743200000.

The previous prime is 1838489849941. The next prime is 1838489850011. The reversal of 1838489850000 is 589848381.

1838489850000 is a `hidden beast` number, since 1 + 8 + 3 + 8 + 48 + 98 + 500 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 148943829 + ... + 148956171.

Almost surely, 2^{1838489850000} is an apocalyptic number.

1838489850000 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 1838489850000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225531490272).

1838489850000 is an abundant number, since it is smaller than the sum of its proper divisors (4612573130544).

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

1838489850000 is a wasteful number, since it uses less digits than its factorization.

1838489850000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713 (or 12684 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 1838489850000 in words is "one trillion, eight hundred thirty-eight billion, four hundred eighty-nine million, eight hundred fifty thousand".