1850383813 has 2 divisors, whose sum is σ = 1850383814. Its totient is φ = 1850383812.

The previous prime is 1850383811. The next prime is 1850383883. The reversal of 1850383813 is 3183830581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131178689 + 719205124 = 33633^2 + 26818^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850383813 - 2¹ = 1850383811 is a prime.

Together with 1850383811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1850383811) 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 as a sum of consecutive naturals, namely, 925191906 + 925191907.

It is an arithmetic number, because the mean of its divisors is an integer number (925191907).

Almost surely, 2^1850383813 is an apocalyptic number.

It is an amenable number.

1850383813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850383813 is an equidigital number, since it uses as much as digits as its factorization.

1850383813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1850383813 is about 43016.0878393189. The cubic root of 1850383813 is about 1227.6859156791.

The spelling of 1850383813 in words is "one billion, eight hundred fifty million, three hundred eighty-three thousand, eight hundred thirteen".