1849868317 has 16 divisors (see below), whose sum is σ = 2081581632. Its totient is φ = 1629141120.

The previous prime is 1849868303. The next prime is 1849868341. The reversal of 1849868317 is 7138689481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1849868317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849868117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85078 + ... + 104584.

It is an arithmetic number, because the mean of its divisors is an integer number (130098852).

Almost surely, 2^1849868317 is an apocalyptic number.

It is an amenable number.

1849868317 is a deficient number, since it is larger than the sum of its proper divisors (231713315).

1849868317 is a wasteful number, since it uses less digits than its factorization.

1849868317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19788.

The product of its digits is 2322432, while the sum is 55.

The square root of 1849868317 is about 43010.0955241906. The cubic root of 1849868317 is about 1227.5718986207.

The spelling of 1849868317 in words is "one billion, eight hundred forty-nine million, eight hundred sixty-eight thousand, three hundred seventeen".