478385255716 has 27 divisors (see below), whose sum is σ = 842462768721. Its totient is φ = 237691047024.

The previous prime is 478385255693. The next prime is 478385255717. The reversal of 478385255716 is 617552583874.

It is a happy number.

The square root of 478385255716 is 691654.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 435164508900 + 43220746816 = 659670^2 + 207896^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478385255717) 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 8 ways as a sum of consecutive naturals, for example, 239311285 + ... + 239313283.

Almost surely, 2^478385255716 is an apocalyptic number.

478385255716 is the 691654-th square number.

It is an amenable number.

478385255716 is a deficient number, since it is larger than the sum of its proper divisors (364077513005).

478385255716 is an frugal number, since it uses more digits than its factorization.

478385255716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348 (or 2174 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 61.

The spelling of 478385255716 in words is "four hundred seventy-eight billion, three hundred eighty-five million, two hundred fifty-five thousand, seven hundred sixteen".