818323256214 has 192 divisors, whose sum is σ = 1884888465408. Its totient is φ = 256217644800.

The previous prime is 818323256203. The next prime is 818323256221. The reversal of 818323256214 is 412652323818.

818323256214 is a `hidden beast` number, since 8 + 1 + 83 + 2 + 3 + 2 + 562 + 1 + 4 = 666.

It is a super-2 number, since 2×818323256214² (a number of 25 digits) contains 22 as substring.

Its product of digits (552960) is a multiple of the sum of its prime divisors (1080).

It is a self number, because there is not a number n which added to its sum of digits gives 818323256214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1564671357 + ... + 1564671879.

It is an arithmetic number, because the mean of its divisors is an integer number (9817127424).

Almost surely, 2^818323256214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818323256214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942444232704).

818323256214 is an abundant number, since it is smaller than the sum of its proper divisors (1066565209194).

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

818323256214 is a wasteful number, since it uses less digits than its factorization.

818323256214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1080 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 818323256214 in words is "eight hundred eighteen billion, three hundred twenty-three million, two hundred fifty-six thousand, two hundred fourteen".