---
title: unsigned64BitValue
framework: Kernel
role: symbol
role_heading: Instance Method
platforms: [driverkit 19.0+, macOS 10.15+]
path: kernel/osnumber/3180926-unsigned64bitvalue
---

# unsigned64BitValue

Returns the value of the OSNumber as a uint64_t value.

## Declaration

```occ
uint64_t unsigned64BitValue(void);
```

```occ
virtual unsigned long long unsigned64BitValue(void);
```

## Return Value

Return Value Returns the value of the OSNumber as a uint64_t value.

## See Also

### Getting Integer Values

- [unsigned8BitValue](kernel/osnumber/3180927-unsigned8bitvalue.md)
- [unsigned16BitValue](kernel/osnumber/3180924-unsigned16bitvalue.md)
- [unsigned32BitValue](kernel/osnumber/3180925-unsigned32bitvalue.md)