2064890999 has 2 divisors, whose sum is σ = 2064891000. Its totient is φ = 2064890998.

The previous prime is 2064890887. The next prime is 2064891007. The reversal of 2064890999 is 9990984602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2064890999 - 2⁸ = 2064890743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2064890599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032445499 + 1032445500.

It is an arithmetic number, because the mean of its divisors is an integer number (1032445500).

Almost surely, 2^2064890999 is an apocalyptic number.

2064890999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064890999 is an equidigital number, since it uses as much as digits as its factorization.

2064890999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 2064890999 is about 45441.0717193158. The cubic root of 2064890999 is about 1273.4025358638.

The spelling of 2064890999 in words is "two billion, sixty-four million, eight hundred ninety thousand, nine hundred ninety-nine".