6139244927 has 4 divisors (see below), whose sum is σ = 6140300400. Its totient is φ = 6138189456.

The previous prime is 6139244873. The next prime is 6139244953. The reversal of 6139244927 is 7294429316.

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 6139244927 - 2²⁴ = 6122467711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139244957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518963 + ... + 530660.

It is an arithmetic number, because the mean of its divisors is an integer number (1535075100).

Almost surely, 2^6139244927 is an apocalyptic number.

6139244927 is a deficient number, since it is larger than the sum of its proper divisors (1055473).

6139244927 is a wasteful number, since it uses less digits than its factorization.

6139244927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055472.

The product of its digits is 653184, while the sum is 47.

The square root of 6139244927 is about 78353.3338601492. Note that the first 3 decimals coincide. The cubic root of 6139244927 is about 1831.0701661562.

The spelling of 6139244927 in words is "six billion, one hundred thirty-nine million, two hundred forty-four thousand, nine hundred twenty-seven".