8471415478 has 4 divisors (see below), whose sum is σ = 12707123220. Its totient is φ = 4235707738.

The previous prime is 8471415437. The next prime is 8471415517. The reversal of 8471415478 is 8745141748.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117853868 + ... + 2117853871.

It is an arithmetic number, because the mean of its divisors is an integer number (3176780805).

Almost surely, 2^8471415478 is an apocalyptic number.

8471415478 is a deficient number, since it is larger than the sum of its proper divisors (4235707742).

8471415478 is a wasteful number, since it uses less digits than its factorization.

8471415478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235707741.

The product of its digits is 1003520, while the sum is 49.

The square root of 8471415478 is about 92040.2926874964. The cubic root of 8471415478 is about 2038.5372923319.

The spelling of 8471415478 in words is "eight billion, four hundred seventy-one million, four hundred fifteen thousand, four hundred seventy-eight".