8115243712 has 28 divisors (see below), whose sum is σ = 16126175520. Its totient is φ = 4051955456.

The previous prime is 8115243659. The next prime is 8115243713. The reversal of 8115243712 is 2173425118.

It is not an unprimeable number, because it can be changed into a prime (8115243713) 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, 42163 + ... + 134194.

It is an arithmetic number, because the mean of its divisors is an integer number (575934840).

Almost surely, 2^8115243712 is an apocalyptic number.

It is an amenable number.

8115243712 is a deficient number, since it is larger than the sum of its proper divisors (8010931808).

8115243712 is a wasteful number, since it uses less digits than its factorization.

8115243712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177088 (or 177078 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 8115243712 is about 90084.6474822431. The cubic root of 8115243712 is about 2009.5578932429.

The spelling of 8115243712 in words is "eight billion, one hundred fifteen million, two hundred forty-three thousand, seven hundred twelve".