2006745889 has 2 divisors, whose sum is σ = 2006745890. Its totient is φ = 2006745888.

The previous prime is 2006745823. The next prime is 2006745899. The reversal of 2006745889 is 9885476002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1689621025 + 317124864 = 41105^2 + 17808^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006745889 - 2¹¹ = 2006743841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2006745809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003372944 + 1003372945.

It is an arithmetic number, because the mean of its divisors is an integer number (1003372945).

Almost surely, 2^2006745889 is an apocalyptic number.

It is an amenable number.

2006745889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006745889 is an equidigital number, since it uses as much as digits as its factorization.

2006745889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 2006745889 is about 44796.7173908982. The cubic root of 2006745889 is about 1261.3360081520.

It can be divided in two parts, 20067 and 45889, that added together give a palindrome (65956).

The spelling of 2006745889 in words is "two billion, six million, seven hundred forty-five thousand, eight hundred eighty-nine".