9641056778 has 8 divisors (see below), whose sum is σ = 14706696960. Its totient is φ = 4738824460.

The previous prime is 9641056769. The next prime is 9641056781. The reversal of 9641056778 is 8776501469.

9641056778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

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, 40851818 + ... + 40852053.

It is an arithmetic number, because the mean of its divisors is an integer number (1838337120).

Almost surely, 2^9641056778 is an apocalyptic number.

9641056778 is a deficient number, since it is larger than the sum of its proper divisors (5065640182).

9641056778 is a wasteful number, since it uses less digits than its factorization.

9641056778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81703932.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 9641056778 is about 98188.8831691246. The cubic root of 9641056778 is about 2128.3426444139.

The spelling of 9641056778 in words is "nine billion, six hundred forty-one million, fifty-six thousand, seven hundred seventy-eight".