8478740742179 has 2 divisors, whose sum is σ = 8478740742180. Its totient is φ = 8478740742178.

The previous prime is 8478740742161. The next prime is 8478740742217. The reversal of 8478740742179 is 9712470478748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8478740742179 - 2²⁰ = 8478739693603 is a prime.

It is not a weakly prime, because it can be changed into another prime (8478740742119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239370371089 + 4239370371090.

It is an arithmetic number, because the mean of its divisors is an integer number (4239370371090).

Almost surely, 2^{8478740742179} is an apocalyptic number.

8478740742179 is a deficient number, since it is larger than the sum of its proper divisors (1).

8478740742179 is an equidigital number, since it uses as much as digits as its factorization.

8478740742179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 177020928, while the sum is 68.

The spelling of 8478740742179 in words is "eight trillion, four hundred seventy-eight billion, seven hundred forty million, seven hundred forty-two thousand, one hundred seventy-nine".