478180869 has 8 divisors (see below), whose sum is σ = 639587040. Its totient is φ = 317780976.

The previous prime is 478180861. The next prime is 478180883. The reversal of 478180869 is 968081874.

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

It is not a de Polignac number, because 478180869 - 2³ = 478180861 is a prime.

It is a super-2 number, since 2×478180869² = 457313886955190322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478180861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250459 + ... + 252360.

It is an arithmetic number, because the mean of its divisors is an integer number (79948380).

Almost surely, 2^478180869 is an apocalyptic number.

It is an amenable number.

478180869 is a deficient number, since it is larger than the sum of its proper divisors (161406171).

478180869 is a wasteful number, since it uses less digits than its factorization.

478180869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503139.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 478180869 is about 21867.3470956127. The cubic root of 478180869 is about 781.9831570167.

The spelling of 478180869 in words is "four hundred seventy-eight million, one hundred eighty thousand, eight hundred sixty-nine".