4772878769 has 4 divisors (see below), whose sum is σ = 4774426980. Its totient is φ = 4771330560.

The previous prime is 4772878753. The next prime is 4772878867. The reversal of 4772878769 is 9678782774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9678782774 = 2 ⋅4839391387.

It can be written as a sum of positive squares in 2 ways, for example, as 4535349025 + 237529744 = 67345^2 + 15412^2 .

It is a cyclic number.

It is not a de Polignac number, because 4772878769 - 2⁴ = 4772878753 is a prime.

It is a super-2 number, since 2×4772878769² = 45560743487141910722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4772878709) 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, 769472 + ... + 775649.

It is an arithmetic number, because the mean of its divisors is an integer number (1193606745).

Almost surely, 2^4772878769 is an apocalyptic number.

It is an amenable number.

4772878769 is a deficient number, since it is larger than the sum of its proper divisors (1548211).

4772878769 is a wasteful number, since it uses less digits than its factorization.

4772878769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548210.

The product of its digits is 66382848, while the sum is 65.

The square root of 4772878769 is about 69086.0244115986. The cubic root of 4772878769 is about 1683.6822540789.

The spelling of 4772878769 in words is "four billion, seven hundred seventy-two million, eight hundred seventy-eight thousand, seven hundred sixty-nine".