9478613818 has 8 divisors (see below), whose sum is σ = 14278942548. Its totient is φ = 4718966304.

The previous prime is 9478613803. The next prime is 9478613819. The reversal of 9478613818 is 8183168749.

9478613818 is digitally balanced in base 2, 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 8410173849 + 1068439969 = 91707^2 + 32687^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9478613819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10169721 + ... + 10170652.

Almost surely, 2^9478613818 is an apocalyptic number.

9478613818 is a deficient number, since it is larger than the sum of its proper divisors (4800328730).

9478613818 is a wasteful number, since it uses less digits than its factorization.

9478613818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20340608.

The product of its digits is 2322432, while the sum is 55.

The square root of 9478613818 is about 97358.1728361826. The cubic root of 9478613818 is about 2116.3213332529.

The spelling of 9478613818 in words is "nine billion, four hundred seventy-eight million, six hundred thirteen thousand, eight hundred eighteen".