8397718612 has 6 divisors (see below), whose sum is σ = 14696007578. Its totient is φ = 4198859304.

The previous prime is 8397718573. The next prime is 8397718627. The reversal of 8397718612 is 2168177938.

It can be written as a sum of positive squares in only one way, i.e., 5489920836 + 2907797776 = 74094^2 + 53924^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8397718612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049714823 + ... + 1049714830.

Almost surely, 2^8397718612 is an apocalyptic number.

It is an amenable number.

8397718612 is a deficient number, since it is larger than the sum of its proper divisors (6298288966).

8397718612 is a wasteful number, since it uses less digits than its factorization.

8397718612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099429657 (or 2099429655 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The square root of 8397718612 is about 91639.0670620342. The cubic root of 8397718612 is about 2032.6086656609.

The spelling of 8397718612 in words is "eight billion, three hundred ninety-seven million, seven hundred eighteen thousand, six hundred twelve".