478147366671 has 24 divisors (see below), whose sum is σ = 699799750416. Its totient is φ = 290213763840.

The previous prime is 478147366667. The next prime is 478147366673. The reversal of 478147366671 is 176663741874.

It is a happy number.

It is not a de Polignac number, because 478147366671 - 2² = 478147366667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478147366673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6422520 + ... + 6496541.

It is an arithmetic number, because the mean of its divisors is an integer number (29158322934).

Almost surely, 2^478147366671 is an apocalyptic number.

478147366671 is a deficient number, since it is larger than the sum of its proper divisors (221652383745).

478147366671 is a wasteful number, since it uses less digits than its factorization.

478147366671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12919163 (or 12919150 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 60.

The spelling of 478147366671 in words is "four hundred seventy-eight billion, one hundred forty-seven million, three hundred sixty-six thousand, six hundred seventy-one".