5778238939 has 4 divisors (see below), whose sum is σ = 6303533400. Its totient is φ = 5252944480.

The previous prime is 5778238901. The next prime is 5778238957. The reversal of 5778238939 is 9398328775.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5778238939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5778238439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262647214 + ... + 262647235.

It is an arithmetic number, because the mean of its divisors is an integer number (1575883350).

Almost surely, 2^5778238939 is an apocalyptic number.

5778238939 is a deficient number, since it is larger than the sum of its proper divisors (525294461).

5778238939 is a wasteful number, since it uses less digits than its factorization.

5778238939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525294460.

The product of its digits is 22861440, while the sum is 61.

The square root of 5778238939 is about 76014.7284346922. The cubic root of 5778238939 is about 1794.4519436995.

It can be divided in two parts, 57782 and 38939, that added together give a square (96721 = 311²).

The spelling of 5778238939 in words is "five billion, seven hundred seventy-eight million, two hundred thirty-eight thousand, nine hundred thirty-nine".