8463478420 has 48 divisors (see below), whose sum is σ = 18280200960. Its totient is φ = 3289106304.

The previous prime is 8463478399. The next prime is 8463478487. The reversal of 8463478420 is 248743648.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524107 + ... + 540013.

It is an arithmetic number, because the mean of its divisors is an integer number (380837520).

Almost surely, 2^8463478420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8463478420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9140100480).

8463478420 is an abundant number, since it is smaller than the sum of its proper divisors (9816722540).

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

8463478420 is a wasteful number, since it uses less digits than its factorization.

8463478420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16672 (or 16670 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The square root of 8463478420 is about 91997.1652824151. The cubic root of 8463478420 is about 2037.9004430541.

The spelling of 8463478420 in words is "eight billion, four hundred sixty-three million, four hundred seventy-eight thousand, four hundred twenty".