---
title: UnsignedInt64 - Customer API
description: |
  An unsigned 64-bit integer. Represents whole numeric values between 0 and 2^64 - 1 encoded as a string of base-10 digits.

  Example value: `"50"`.
api_version: 2025-10
api_name: customer
type: scalar
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/customer/latest/scalars/unsignedint64
  md: https://shopify.dev/docs/api/customer/latest/scalars/unsignedint64.md
---

# Unsigned​Int64

scalar

An unsigned 64-bit integer. Represents whole numeric values between 0 and 2^64 - 1 encoded as a string of base-10 digits.

Example value: `"50"`.

## Map

### Fields with this scalar

* <-|[Draft​Order.totalWeight](https://shopify.dev/docs/api/customer/latest/objects/DraftOrder#field-totalWeight)
* <-|[Subscription​Contract.revisionId](https://shopify.dev/docs/api/customer/latest/objects/SubscriptionContract#field-revisionId)