478770668179 has 4 divisors (see below), whose sum is σ = 478772133784. Its totient is φ = 478769202576.

The previous prime is 478770668171. The next prime is 478770668191. The reversal of 478770668179 is 971866077874.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 478770668179 - 2³ = 478770668171 is a prime.

It is a super-3 number, since 3×478770668179³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478770668171) 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, 4444 + ... + 978550.

It is an arithmetic number, because the mean of its divisors is an integer number (119693033446).

Almost surely, 2^478770668179 is an apocalyptic number.

478770668179 is a deficient number, since it is larger than the sum of its proper divisors (1465605).

478770668179 is an equidigital number, since it uses as much as digits as its factorization.

478770668179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465604.

The product of its (nonzero) digits is 199148544, while the sum is 70.

The spelling of 478770668179 in words is "four hundred seventy-eight billion, seven hundred seventy million, six hundred sixty-eight thousand, one hundred seventy-nine".