4778216723 has 16 divisors (see below), whose sum is σ = 5577412800. Its totient is φ = 4091830848.

The previous prime is 4778216701. The next prime is 4778216743. The reversal of 4778216723 is 3276128774.

It is not a de Polignac number, because 4778216723 - 2⁸ = 4778216467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4778216743) 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 15 ways as a sum of consecutive naturals, for example, 403361 + ... + 415037.

It is an arithmetic number, because the mean of its divisors is an integer number (348588300).

Almost surely, 2^4778216723 is an apocalyptic number.

4778216723 is a deficient number, since it is larger than the sum of its proper divisors (799196077).

4778216723 is a wasteful number, since it uses less digits than its factorization.

4778216723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891 (or 12877 counting only the distinct ones).

The product of its digits is 790272, while the sum is 47.

The square root of 4778216723 is about 69124.6462775760. The cubic root of 4778216723 is about 1684.3096930209.

The spelling of 4778216723 in words is "four billion, seven hundred seventy-eight million, two hundred sixteen thousand, seven hundred twenty-three".