478518764 has 12 divisors (see below), whose sum is σ = 838004664. Its totient is φ = 239088864.

The previous prime is 478518707. The next prime is 478518767. The reversal of 478518764 is 467815874.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (478518767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36209 + ... + 47624.

It is an arithmetic number, because the mean of its divisors is an integer number (69833722).

Almost surely, 2^478518764 is an apocalyptic number.

It is an amenable number.

478518764 is a deficient number, since it is larger than the sum of its proper divisors (359485900).

478518764 is a wasteful number, since it uses less digits than its factorization.

478518764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85264 (or 85262 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The square root of 478518764 is about 21875.0717484538. The cubic root of 478518764 is about 782.1673035071.

The spelling of 478518764 in words is "four hundred seventy-eight million, five hundred eighteen thousand, seven hundred sixty-four".