478860462840 has 128 divisors (see below), whose sum is σ = 1523629440000. Its totient is φ = 119983638528.

The previous prime is 478860462799. The next prime is 478860462851. The reversal of 478860462840 is 48264068874.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1026021 + ... + 1417899.

It is an arithmetic number, because the mean of its divisors is an integer number (11903355000).

Almost surely, 2^478860462840 is an apocalyptic number.

478860462840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478860462840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761814720000).

478860462840 is an abundant number, since it is smaller than the sum of its proper divisors (1044768977160).

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

478860462840 is a wasteful number, since it uses less digits than its factorization.

478860462840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392509 (or 392505 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 57.

The spelling of 478860462840 in words is "four hundred seventy-eight billion, eight hundred sixty million, four hundred sixty-two thousand, eight hundred forty".