478471878 has 12 divisors (see below), whose sum is σ = 1036689108. Its totient is φ = 159490620.

The previous prime is 478471853. The next prime is 478471933. The reversal of 478471878 is 878174874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13290868 + ... + 13290903.

It is an arithmetic number, because the mean of its divisors is an integer number (86390759).

Almost surely, 2^478471878 is an apocalyptic number.

478471878 is an abundant number, since it is smaller than the sum of its proper divisors (558217230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478471878 is a wasteful number, since it uses less digits than its factorization.

478471878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26581779 (or 26581776 counting only the distinct ones).

The product of its digits is 2809856, while the sum is 54.

The square root of 478471878 is about 21874.0000457164. Note that the first 4 decimals coincide. The cubic root of 478471878 is about 782.1417566900.

The spelling of 478471878 in words is "four hundred seventy-eight million, four hundred seventy-one thousand, eight hundred seventy-eight".