2838123839 has 4 divisors (see below), whose sum is σ = 2857171800. Its totient is φ = 2819075880.

The previous prime is 2838123833. The next prime is 2838123859. The reversal of 2838123839 is 9383218382.

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 2838123839 - 2⁸ = 2838123583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2838123793 and 2838123802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2838123833) 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, 9523757 + ... + 9524054.

It is an arithmetic number, because the mean of its divisors is an integer number (714292950).

Almost surely, 2^2838123839 is an apocalyptic number.

2838123839 is a deficient number, since it is larger than the sum of its proper divisors (19047961).

2838123839 is a wasteful number, since it uses less digits than its factorization.

2838123839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19047960.

The product of its digits is 497664, while the sum is 47.

The square root of 2838123839 is about 53274.0447028382. The cubic root of 2838123839 is about 1415.8278380746.

The spelling of 2838123839 in words is "two billion, eight hundred thirty-eight million, one hundred twenty-three thousand, eight hundred thirty-nine".