6138629369 has 2 divisors, whose sum is σ = 6138629370. Its totient is φ = 6138629368.

The previous prime is 6138629353. The next prime is 6138629377. The reversal of 6138629369 is 9639268316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6089461225 + 49168144 = 78035^2 + 7012^2 .

It is a cyclic number.

It is not a de Polignac number, because 6138629369 - 2⁴ = 6138629353 is a prime.

It is a super-2 number, since 2×6138629369² = 75365541059898676322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6138629369.

It is not a weakly prime, because it can be changed into another prime (6138629069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069314684 + 3069314685.

It is an arithmetic number, because the mean of its divisors is an integer number (3069314685).

Almost surely, 2^6138629369 is an apocalyptic number.

It is an amenable number.

6138629369 is a deficient number, since it is larger than the sum of its proper divisors (1).

6138629369 is an equidigital number, since it uses as much as digits as its factorization.

6138629369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 53.

The square root of 6138629369 is about 78349.4056710068. The cubic root of 6138629369 is about 1831.0089660371.

The spelling of 6138629369 in words is "six billion, one hundred thirty-eight million, six hundred twenty-nine thousand, three hundred sixty-nine".