818023537386 has 96 divisors (see below), whose sum is σ = 1968638862528. Its totient is φ = 243412197120.

The previous prime is 818023537369. The next prime is 818023537469. The reversal of 818023537386 is 683735320818.

818023537386 is a `hidden beast` number, since 8 + 1 + 8 + 0 + 23 + 537 + 3 + 86 = 666.

818023537386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3156400 + ... + 3405716.

It is an arithmetic number, because the mean of its divisors is an integer number (20506654818).

Almost surely, 2^818023537386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818023537386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984319431264).

818023537386 is an abundant number, since it is smaller than the sum of its proper divisors (1150615325142).

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

818023537386 is a wasteful number, since it uses less digits than its factorization.

818023537386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249636 (or 249633 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 818023537386 in words is "eight hundred eighteen billion, twenty-three million, five hundred thirty-seven thousand, three hundred eighty-six".