8947918699 has 2 divisors, whose sum is σ = 8947918700. Its totient is φ = 8947918698.

The previous prime is 8947918663. The next prime is 8947918723. The reversal of 8947918699 is 9968197498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8947918699 - 2¹¹ = 8947916651 is a prime.

It is not a weakly prime, because it can be changed into another prime (8947918619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473959349 + 4473959350.

It is an arithmetic number, because the mean of its divisors is an integer number (4473959350).

Almost surely, 2^8947918699 is an apocalyptic number.

8947918699 is a deficient number, since it is larger than the sum of its proper divisors (1).

8947918699 is an equidigital number, since it uses as much as digits as its factorization.

8947918699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 70.

The square root of 8947918699 is about 94593.4389849529. The cubic root of 8947918699 is about 2076.0637076979.

The spelling of 8947918699 in words is "eight billion, nine hundred forty-seven million, nine hundred eighteen thousand, six hundred ninety-nine".