813228676518 has 32 divisors (see below), whose sum is σ = 1630793336832. Its totient is φ = 270354526400.

The previous prime is 813228676511. The next prime is 813228676537. The reversal of 813228676518 is 815676822318.

It is a super-2 number, since 2×813228676518² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813228676511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3272683 + ... + 3512393.

It is an arithmetic number, because the mean of its divisors is an integer number (50962291776).

Almost surely, 2^813228676518 is an apocalyptic number.

813228676518 is an abundant number, since it is smaller than the sum of its proper divisors (817564660314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813228676518 is a wasteful number, since it uses less digits than its factorization.

813228676518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241220.

The product of its digits is 7741440, while the sum is 57.

The spelling of 813228676518 in words is "eight hundred thirteen billion, two hundred twenty-eight million, six hundred seventy-six thousand, five hundred eighteen".