478715855 has 8 divisors (see below), whose sum is σ = 580381872. Its totient is φ = 379024128.

The previous prime is 478715843. The next prime is 478715873. The reversal of 478715855 is 558517874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478715855 - 2⁶ = 478715791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 493037 + ... + 494006.

It is an arithmetic number, because the mean of its divisors is an integer number (72547734).

Almost surely, 2^478715855 is an apocalyptic number.

478715855 is a deficient number, since it is larger than the sum of its proper divisors (101666017).

478715855 is an equidigital number, since it uses as much as digits as its factorization.

478715855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987145.

The product of its digits is 1568000, while the sum is 50.

The square root of 478715855 is about 21879.5762070475. The cubic root of 478715855 is about 782.2746744106.

The spelling of 478715855 in words is "four hundred seventy-eight million, seven hundred fifteen thousand, eight hundred fifty-five".