8180368686 has 240 divisors, whose sum is σ = 22555658400. Its totient is φ = 2170063872.

The previous prime is 8180368681. The next prime is 8180368723. The reversal of 8180368686 is 6868630818.

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 (8180368681) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 35722020 + ... + 35722248.

It is an arithmetic number, because the mean of its divisors is an integer number (93981910).

Almost surely, 2^8180368686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8180368686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11277829200).

8180368686 is an abundant number, since it is smaller than the sum of its proper divisors (14375289714).

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

8180368686 is a wasteful number, since it uses less digits than its factorization.

8180368686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The square root of 8180368686 is about 90445.3906288209. The cubic root of 8180368686 is about 2014.9191564911.

The spelling of 8180368686 in words is "eight billion, one hundred eighty million, three hundred sixty-eight thousand, six hundred eighty-six".