6138793439 has 2 divisors, whose sum is σ = 6138793440. Its totient is φ = 6138793438.

The previous prime is 6138793387. The next prime is 6138793447. The reversal of 6138793439 is 9343978316.

6138793439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6138793439 - 2²⁰ = 6137744863 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6138763439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069396719 + 3069396720.

It is an arithmetic number, because the mean of its divisors is an integer number (3069396720).

Almost surely, 2^6138793439 is an apocalyptic number.

6138793439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6138793439 is an equidigital number, since it uses as much as digits as its factorization.

6138793439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 53.

The square root of 6138793439 is about 78350.4527044994. The cubic root of 6138793439 is about 1831.0252786342.

The spelling of 6138793439 in words is "six billion, one hundred thirty-eight million, seven hundred ninety-three thousand, four hundred thirty-nine".