818337711522 has 16 divisors (see below), whose sum is σ = 1636720727040. Its totient is φ = 272771686512.

The previous prime is 818337711481. The next prime is 818337711557. The reversal of 818337711522 is 225117733818.

It is a happy number.

It is a super-2 number, since 2×818337711522² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1650553 + ... + 2088300.

It is an arithmetic number, because the mean of its divisors is an integer number (102295045440).

Almost surely, 2^818337711522 is an apocalyptic number.

818337711522 is an abundant number, since it is smaller than the sum of its proper divisors (818383015518).

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

818337711522 is a wasteful number, since it uses less digits than its factorization.

818337711522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775337.

The product of its digits is 564480, while the sum is 48.

The spelling of 818337711522 in words is "eight hundred eighteen billion, three hundred thirty-seven million, seven hundred eleven thousand, five hundred twenty-two".