2065671757 has 2 divisors, whose sum is σ = 2065671758. Its totient is φ = 2065671756.

The previous prime is 2065671743. The next prime is 2065671787. The reversal of 2065671757 is 7571765602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1708499556 + 357172201 = 41334^2 + 18899^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065671757 - 2¹⁵ = 2065638989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2065671737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032835878 + 1032835879.

It is an arithmetic number, because the mean of its divisors is an integer number (1032835879).

Almost surely, 2^2065671757 is an apocalyptic number.

It is an amenable number.

2065671757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065671757 is an equidigital number, since it uses as much as digits as its factorization.

2065671757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617400, while the sum is 46.

The square root of 2065671757 is about 45449.6617919210. The cubic root of 2065671757 is about 1273.5630114750.

The spelling of 2065671757 in words is "two billion, sixty-five million, six hundred seventy-one thousand, seven hundred fifty-seven".