5239338779 has 4 divisors (see below), whose sum is σ = 5239789776. Its totient is φ = 5238887784.

The previous prime is 5239338743. The next prime is 5239338809. The reversal of 5239338779 is 9778339325.

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

It is a cyclic number.

It is not a de Polignac number, because 5239338779 - 2²⁰ = 5238290203 is a prime.

It is a super-2 number, since 2×5239338779² = 54901341682266421682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5239338719) 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, 207599 + ... + 231464.

It is an arithmetic number, because the mean of its divisors is an integer number (1309947444).

Almost surely, 2^5239338779 is an apocalyptic number.

5239338779 is a deficient number, since it is larger than the sum of its proper divisors (450997).

5239338779 is a wasteful number, since it uses less digits than its factorization.

5239338779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450996.

The product of its digits is 8573040, while the sum is 56.

The square root of 5239338779 is about 72383.2769291361. The cubic root of 5239338779 is about 1736.8360588960.

The spelling of 5239338779 in words is "five billion, two hundred thirty-nine million, three hundred thirty-eight thousand, seven hundred seventy-nine".