8478143520 has 384 divisors, whose sum is σ = 35051304960. Its totient is φ = 1668833280.

The previous prime is 8478143503. The next prime is 8478143521. The reversal of 8478143520 is 253418748.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (8478143521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 696204 + ... + 708276.

It is an arithmetic number, because the mean of its divisors is an integer number (91279440).

Almost surely, 2^8478143520 is an apocalyptic number.

8478143520 is a gapful number since it is divisible by the number (80) 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 8478143520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17525652480).

8478143520 is an abundant number, since it is smaller than the sum of its proper divisors (26573161440).

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

8478143520 is a wasteful number, since it uses less digits than its factorization.

8478143520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128 (or 12120 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 8478143520 is about 92076.8348717526. The cubic root of 8478143520 is about 2039.0768218128.

The spelling of 8478143520 in words is "eight billion, four hundred seventy-eight million, one hundred forty-three thousand, five hundred twenty".