478318618426618 has 16 divisors (see below), whose sum is σ = 724889479595904. Its totient is φ = 236688893066880.

The previous prime is 478318618426613. The next prime is 478318618426619. The reversal of 478318618426618 is 816624816813874.

It is not an unprimeable number, because it can be changed into a prime (478318618426613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15803938 + ... + 34733293.

It is an arithmetic number, because the mean of its divisors is an integer number (45305592474744).

Almost surely, 2^{478318618426618} is an apocalyptic number.

478318618426618 is a deficient number, since it is larger than the sum of its proper divisors (246570861169286).

478318618426618 is a wasteful number, since it uses less digits than its factorization.

478318618426618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50586117.

The product of its digits is 594542592, while the sum is 73.

The spelling of 478318618426618 in words is "four hundred seventy-eight trillion, three hundred eighteen billion, six hundred eighteen million, four hundred twenty-six thousand, six hundred eighteen".