4768178689 has 4 divisors (see below), whose sum is σ = 4789000660. Its totient is φ = 4747356720.

The previous prime is 4768178671. The next prime is 4768178693. The reversal of 4768178689 is 9868718674.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3962073025 + 806105664 = 62945^2 + 28392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4768178689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4768178689.

It is not an unprimeable number, because it can be changed into a prime (4768178629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10410642 + ... + 10411099.

It is an arithmetic number, because the mean of its divisors is an integer number (1197250165).

Almost surely, 2^4768178689 is an apocalyptic number.

It is an amenable number.

4768178689 is a deficient number, since it is larger than the sum of its proper divisors (20821971).

4768178689 is a wasteful number, since it uses less digits than its factorization.

4768178689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20821970.

The product of its digits is 32514048, while the sum is 64.

The square root of 4768178689 is about 69051.9998913862. Note that the first 3 decimals coincide. The cubic root of 4768178689 is about 1683.1294053214.

The spelling of 4768178689 in words is "four billion, seven hundred sixty-eight million, one hundred seventy-eight thousand, six hundred eighty-nine".