8108786740 has 12 divisors (see below), whose sum is σ = 17028452196. Its totient is φ = 3243514688.

The previous prime is 8108786729. The next prime is 8108786743. The reversal of 8108786740 is 476878018.

It can be written as a sum of positive squares in 2 ways, for example, as 6062491044 + 2046295696 = 77862^2 + 45236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8108786743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202719649 + ... + 202719688.

It is an arithmetic number, because the mean of its divisors is an integer number (1419037683).

Almost surely, 2^8108786740 is an apocalyptic number.

It is an amenable number.

8108786740 is an abundant number, since it is smaller than the sum of its proper divisors (8919665456).

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

8108786740 is a wasteful number, since it uses less digits than its factorization.

8108786740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405439346 (or 405439344 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 49.

The square root of 8108786740 is about 90048.8019909205. The cubic root of 8108786740 is about 2009.0247771126.

The spelling of 8108786740 in words is "eight billion, one hundred eight million, seven hundred eighty-six thousand, seven hundred forty".