478722835648 has 28 divisors (see below), whose sum is σ = 950049672160. Its totient is φ = 239340241152.

The previous prime is 478722835639. The next prime is 478722835691. The reversal of 478722835648 is 846538227874.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 478722835648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411058 + ... + 1061326.

Almost surely, 2^478722835648 is an apocalyptic number.

It is an amenable number.

478722835648 is a deficient number, since it is larger than the sum of its proper divisors (471326836512).

478722835648 is a wasteful number, since it uses less digits than its factorization.

478722835648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661784 (or 661774 counting only the distinct ones).

The product of its digits is 144506880, while the sum is 64.

The spelling of 478722835648 in words is "four hundred seventy-eight billion, seven hundred twenty-two million, eight hundred thirty-five thousand, six hundred forty-eight".