618836258112822 has 192 divisors, whose sum is σ = 1473460161997824. Its totient is φ = 193987053964800.

The previous prime is 618836258112817. The next prime is 618836258112841. The reversal of 618836258112822 is 228211852638816.

618836258112822 is a `hidden beast` number, since 6 + 1 + 8 + 8 + 3 + 6 + 2 + 581 + 1 + 28 + 22 = 666.

It is a super-2 number, since 2×618836258112822² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 618836258112822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71765768403 + ... + 71765777025.

It is an arithmetic number, because the mean of its divisors is an integer number (7674271677072).

Almost surely, 2^{618836258112822} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618836258112822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736730080998912).

618836258112822 is an abundant number, since it is smaller than the sum of its proper divisors (854623903885002).

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

618836258112822 is a wasteful number, since it uses less digits than its factorization.

618836258112822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14705 (or 14693 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 63.

The spelling of 618836258112822 in words is "six hundred eighteen trillion, eight hundred thirty-six billion, two hundred fifty-eight million, one hundred twelve thousand, eight hundred twenty-two".