1843341851849 has 8 divisors (see below), whose sum is σ = 1854154194312. Its totient is φ = 1832531316480.

The previous prime is 1843341851839. The next prime is 1843341851893. The reversal of 1843341851849 is 9481581433481.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 970014221449 + 873327630400 = 984893^2 + 934520^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1843341851849 - 2³² = 1839046884553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1843341851809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622159 + ... + 2513579.

It is an arithmetic number, because the mean of its divisors is an integer number (231769274289).

Almost surely, 2^{1843341851849} is an apocalyptic number.

It is an amenable number.

1843341851849 is a deficient number, since it is larger than the sum of its proper divisors (10812342463).

1843341851849 is a wasteful number, since it uses less digits than its factorization.

1843341851849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903547.

The product of its digits is 13271040, while the sum is 59.

The spelling of 1843341851849 in words is "one trillion, eight hundred forty-three billion, three hundred forty-one million, eight hundred fifty-one thousand, eight hundred forty-nine".