2006745823 has 2 divisors, whose sum is σ = 2006745824. Its totient is φ = 2006745822.

The previous prime is 2006745809. The next prime is 2006745889. The reversal of 2006745823 is 3285476002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2006745823 - 2²⁵ = 1973191391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006745523) 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, 1003372911 + 1003372912.

It is an arithmetic number, because the mean of its divisors is an integer number (1003372912).

Almost surely, 2^2006745823 is an apocalyptic number.

2006745823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006745823 is an equidigital number, since it uses as much as digits as its factorization.

2006745823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2006745823 is about 44796.7166542371. The cubic root of 2006745823 is about 1261.3359943239.

The spelling of 2006745823 in words is "two billion, six million, seven hundred forty-five thousand, eight hundred twenty-three".