1836773689 has 2 divisors, whose sum is σ = 1836773690. Its totient is φ = 1836773688.

The previous prime is 1836773669. The next prime is 1836773707. The reversal of 1836773689 is 9863776381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106693289 + 730080400 = 33267^2 + 27020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1836773689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1836773639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918386844 + 918386845.

It is an arithmetic number, because the mean of its divisors is an integer number (918386845).

Almost surely, 2^1836773689 is an apocalyptic number.

It is an amenable number.

1836773689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836773689 is an equidigital number, since it uses as much as digits as its factorization.

1836773689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 58.

The square root of 1836773689 is about 42857.5977978234. The cubic root of 1836773689 is about 1224.6685070553.

The spelling of 1836773689 in words is "one billion, eight hundred thirty-six million, seven hundred seventy-three thousand, six hundred eighty-nine".