812113606311218 has 16 divisors (see below), whose sum is σ = 1218337135848000. Its totient is φ = 406001229727632.

The previous prime is 812113606311173. The next prime is 812113606311223.

812113606311218 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×812113606311218² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846638003 + ... + 847596681.

It is an arithmetic number, because the mean of its divisors is an integer number (76146070990500).

Almost surely, 2^{812113606311218} is an apocalyptic number.

812113606311218 is a deficient number, since it is larger than the sum of its proper divisors (406223529536782).

812113606311218 is a wasteful number, since it uses less digits than its factorization.

812113606311218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016209.

The product of its (nonzero) digits is 82944, while the sum is 44.

It can be divided in two parts, 81211360 and 6311218, that added together give a palindrome (87522578).

The spelling of 812113606311218 in words is "eight hundred twelve trillion, one hundred thirteen billion, six hundred six million, three hundred eleven thousand, two hundred eighteen".