4839779869 has 4 divisors (see below), whose sum is σ = 5006668860. Its totient is φ = 4672890880.

The previous prime is 4839779839. The next prime is 4839779887. The reversal of 4839779869 is 9689779384.

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 3591005625 + 1248774244 = 59925^2 + 35338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4839779869 is a prime.

It is a super-2 number, since 2×4839779869² = 46846938360755314322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4839779798 and 4839779807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4839779839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83444452 + ... + 83444509.

It is an arithmetic number, because the mean of its divisors is an integer number (1251667215).

Almost surely, 2^4839779869 is an apocalyptic number.

It is an amenable number.

4839779869 is a deficient number, since it is larger than the sum of its proper divisors (166888991).

4839779869 is a wasteful number, since it uses less digits than its factorization.

4839779869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166888990.

The product of its digits is 164602368, while the sum is 70.

The square root of 4839779869 is about 69568.5264253887. The cubic root of 4839779869 is about 1691.5124666077.

The spelling of 4839779869 in words is "four billion, eight hundred thirty-nine million, seven hundred seventy-nine thousand, eight hundred sixty-nine".