478977005217 has 16 divisors (see below), whose sum is σ = 652690483200. Its totient is φ = 312300483792.

The previous prime is 478977005183. The next prime is 478977005231. The reversal of 478977005217 is 712500779874.

It is a de Polignac number, because none of the positive numbers 2^k-478977005217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478977005267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016823 + ... + 1411340.

It is an arithmetic number, because the mean of its divisors is an integer number (40793155200).

Almost surely, 2^478977005217 is an apocalyptic number.

478977005217 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

478977005217 is a deficient number, since it is larger than the sum of its proper divisors (173713477983).

478977005217 is a wasteful number, since it uses less digits than its factorization.

478977005217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429612.

The product of its (nonzero) digits is 6914880, while the sum is 57.

The spelling of 478977005217 in words is "four hundred seventy-eight billion, nine hundred seventy-seven million, five thousand, two hundred seventeen".