8478643454 has 8 divisors (see below), whose sum is σ = 12788230728. Its totient is φ = 4215899880.

The previous prime is 8478643451. The next prime is 8478643477. The reversal of 8478643454 is 4543468748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8478643396 and 8478643405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478643451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11710472 + ... + 11711195.

It is an arithmetic number, because the mean of its divisors is an integer number (1598528841).

Almost surely, 2^8478643454 is an apocalyptic number.

8478643454 is a deficient number, since it is larger than the sum of its proper divisors (4309587274).

8478643454 is a wasteful number, since it uses less digits than its factorization.

8478643454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23421850.

The product of its digits is 10321920, while the sum is 53.

The square root of 8478643454 is about 92079.5495970739. The cubic root of 8478643454 is about 2039.1169007048.

The spelling of 8478643454 in words is "eight billion, four hundred seventy-eight million, six hundred forty-three thousand, four hundred fifty-four".