818112224643424 has 24 divisors (see below), whose sum is σ = 1633343772444048. Its totient is φ = 403294758625920.

The previous prime is 818112224643407. The next prime is 818112224643431. The reversal of 818112224643424 is 424346422211818.

It is a super-2 number, since 2×818112224643424² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180042300687 + ... + 180042305230.

It is an arithmetic number, because the mean of its divisors is an integer number (68055990518502).

Almost surely, 2^{818112224643424} is an apocalyptic number.

It is an amenable number.

818112224643424 is a deficient number, since it is larger than the sum of its proper divisors (815231547800624).

818112224643424 is a wasteful number, since it uses less digits than its factorization.

818112224643424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360084605998 (or 360084605990 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 52.

The spelling of 818112224643424 in words is "eight hundred eighteen trillion, one hundred twelve billion, two hundred twenty-four million, six hundred forty-three thousand, four hundred twenty-four".