818461123874 has 16 divisors (see below), whose sum is σ = 1239279129216. Its totient is φ = 405368782800.

The previous prime is 818461123861. The next prime is 818461123877. The reversal of 818461123874 is 478321164818.

It is a super-2 number, since 2×818461123874² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (818461123877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240039 + ... + 2579669.

It is an arithmetic number, because the mean of its divisors is an integer number (77454945576).

Almost surely, 2^818461123874 is an apocalyptic number.

818461123874 is a deficient number, since it is larger than the sum of its proper divisors (420818005342).

818461123874 is a wasteful number, since it uses less digits than its factorization.

818461123874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351001.

The product of its digits is 2064384, while the sum is 53.

The spelling of 818461123874 in words is "eight hundred eighteen billion, four hundred sixty-one million, one hundred twenty-three thousand, eight hundred seventy-four".