2046605989 has 2 divisors, whose sum is σ = 2046605990. Its totient is φ = 2046605988.

The previous prime is 2046605969. The next prime is 2046606073. The reversal of 2046605989 is 9895066402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1702800225 + 343805764 = 41265^2 + 18542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046605989 - 2⁷ = 2046605861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2046605959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023302994 + 1023302995.

It is an arithmetic number, because the mean of its divisors is an integer number (1023302995).

Almost surely, 2^2046605989 is an apocalyptic number.

It is an amenable number.

2046605989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2046605989 is an equidigital number, since it uses as much as digits as its factorization.

2046605989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 2046605989 is about 45239.4295830529. The cubic root of 2046605989 is about 1269.6326440756.

The spelling of 2046605989 in words is "two billion, forty-six million, six hundred five thousand, nine hundred eighty-nine".