Next prime | 79 |

Previous prime | 71 |

Octal | (111)_{8} |

Hexadecimal | (49)_{16} |

Prime gap | 6 |

14th Sexy prime (the small number) | The big number is 79 . |

9th Prime of the Form 3n+1 | 5^{2} + 3 * 4^{2} |

9th Prime of the Form 4n+1 | 3^{2} + 8^{2} |

6th Emirp (reversible prime) | |

13th Left-truncatable prime | |

12th Right-truncatable prime | |

8th Two-sided prime |