2064840539 has 2 divisors, whose sum is σ = 2064840540. Its totient is φ = 2064840538.

The previous prime is 2064840527. The next prime is 2064840581. The reversal of 2064840539 is 9350484602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2064840539 - 2¹² = 2064836443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2064840496 and 2064840505.

It is not a weakly prime, because it can be changed into another prime (2064840439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032420269 + 1032420270.

It is an arithmetic number, because the mean of its divisors is an integer number (1032420270).

Almost surely, 2^2064840539 is an apocalyptic number.

2064840539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064840539 is an equidigital number, since it uses as much as digits as its factorization.

2064840539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 2064840539 is about 45440.5164913428. The cubic root of 2064840539 is about 1273.3921630136.

The spelling of 2064840539 in words is "two billion, sixty-four million, eight hundred forty thousand, five hundred thirty-nine".