8208128474 has 24 divisors (see below), whose sum is σ = 15424067988. Its totient is φ = 3247171200.

The previous prime is 8208128471. The next prime is 8208128483. The reversal of 8208128474 is 4748218028.

8208128474 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6823916449 + 1384212025 = 82607^2 + 37205^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8208128471) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3220127 + ... + 3222674.

Almost surely, 2^8208128474 is an apocalyptic number.

8208128474 is a deficient number, since it is larger than the sum of its proper divisors (7215939514).

8208128474 is a wasteful number, since it uses less digits than its factorization.

8208128474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442830 (or 6442823 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 44.

The square root of 8208128474 is about 90598.7222536830. The cubic root of 8208128474 is about 2017.1957685476.

The spelling of 8208128474 in words is "eight billion, two hundred eight million, one hundred twenty-eight thousand, four hundred seventy-four".