818711058816 has 1536 divisors, whose sum is σ = 3156533452800. Its totient is φ = 205746241536.

The previous prime is 818711058811. The next prime is 818711058887. The reversal of 818711058816 is 618850117818.

It is a super-2 number, since 2×818711058816² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818711058811) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 5022767151 + ... + 5022767313.

It is an arithmetic number, because the mean of its divisors is an integer number (2055034800).

Almost surely, 2^818711058816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818711058816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578266726400).

818711058816 is an abundant number, since it is smaller than the sum of its proper divisors (2337822393984).

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

818711058816 is a wasteful number, since it uses less digits than its factorization.

818711058816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 54.

The spelling of 818711058816 in words is "eight hundred eighteen billion, seven hundred eleven million, fifty-eight thousand, eight hundred sixteen".