6138439627 has 2 divisors, whose sum is σ = 6138439628. Its totient is φ = 6138439626.

The previous prime is 6138439621. The next prime is 6138439667. The reversal of 6138439627 is 7269348316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6138439627 - 2⁷ = 6138439499 is a prime.

It is not a weakly prime, because it can be changed into another prime (6138439621) 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 as a sum of consecutive naturals, namely, 3069219813 + 3069219814.

It is an arithmetic number, because the mean of its divisors is an integer number (3069219814).

Almost surely, 2^6138439627 is an apocalyptic number.

6138439627 is a deficient number, since it is larger than the sum of its proper divisors (1).

6138439627 is an equidigital number, since it uses as much as digits as its factorization.

6138439627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 6138439627 is about 78348.1947909459. The cubic root of 6138439627 is about 1830.9901006486.

The spelling of 6138439627 in words is "six billion, one hundred thirty-eight million, four hundred thirty-nine thousand, six hundred twenty-seven".