How to use Int64 in C#

Question

The question is easy! How do you represent a 64 bit int in C#?

Answer 1

64 bit int is long

Answer 2

System.Int64 is the .net type, in C# it's also called long

Answer 3

A signed 64 bit integer is long, an unsigned is ulong.

The corresponding types in the framwwork are System.Int64 and System.UInt64, respectively.

Example:

long bigNumber = 9223372036854775807;

Answer 4

By using the long data type, or ulong for unsigned.

Table of Integral C# Types