2065986457 has 2 divisors, whose sum is σ = 2065986458. Its totient is φ = 2065986456.

The previous prime is 2065986409. The next prime is 2065986467. The reversal of 2065986457 is 7546895602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1623767616 + 442218841 = 40296^2 + 21029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2065986457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2065986467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032993228 + 1032993229.

It is an arithmetic number, because the mean of its divisors is an integer number (1032993229).

Almost surely, 2^2065986457 is an apocalyptic number.

It is an amenable number.

2065986457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065986457 is an equidigital number, since it uses as much as digits as its factorization.

2065986457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The square root of 2065986457 is about 45453.1237320385. The cubic root of 2065986457 is about 1273.6276829193.

The spelling of 2065986457 in words is "two billion, sixty-five million, nine hundred eighty-six thousand, four hundred fifty-seven".