9633396478 has 4 divisors (see below), whose sum is σ = 14450094720. Its totient is φ = 4816698238.

The previous prime is 9633396467. The next prime is 9633396491. The reversal of 9633396478 is 8746933369.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8746933369 = 197 ⋅44400677.

It is a Smith number, since the sum of its digits (58) 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, 2408349118 + ... + 2408349121.

It is an arithmetic number, because the mean of its divisors is an integer number (3612523680).

Almost surely, 2^9633396478 is an apocalyptic number.

9633396478 is a deficient number, since it is larger than the sum of its proper divisors (4816698242).

9633396478 is a wasteful number, since it uses less digits than its factorization.

9633396478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816698241.

The product of its digits is 17635968, while the sum is 58.

The square root of 9633396478 is about 98149.8674375060. The cubic root of 9633396478 is about 2127.7788036273.

The spelling of 9633396478 in words is "nine billion, six hundred thirty-three million, three hundred ninety-six thousand, four hundred seventy-eight".