478635578684 has 24 divisors (see below), whose sum is σ = 840431264400. Its totient is φ = 238513572864.

The previous prime is 478635578671. The next prime is 478635578689. The reversal of 478635578684 is 486875536874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478635578689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1434962 + ... + 1736774.

It is an arithmetic number, because the mean of its divisors is an integer number (35017969350).

Almost surely, 2^478635578684 is an apocalyptic number.

It is an amenable number.

478635578684 is a deficient number, since it is larger than the sum of its proper divisors (361795685716).

478635578684 is a wasteful number, since it uses less digits than its factorization.

478635578684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303149 (or 303147 counting only the distinct ones).

The product of its digits is 1083801600, while the sum is 71.

The spelling of 478635578684 in words is "four hundred seventy-eight billion, six hundred thirty-five million, five hundred seventy-eight thousand, six hundred eighty-four".