6138621147 has 32 divisors (see below), whose sum is σ = 8675573760. Its totient is φ = 3854592000.

The previous prime is 6138621131. The next prime is 6138621169. The reversal of 6138621147 is 7411268316.

6138621147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6138621147 - 2⁴ = 6138621131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6138621847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1824747 + ... + 1828107.

It is an arithmetic number, because the mean of its divisors is an integer number (271111680).

Almost surely, 2^6138621147 is an apocalyptic number.

6138621147 is a deficient number, since it is larger than the sum of its proper divisors (2536952613).

6138621147 is a wasteful number, since it uses less digits than its factorization.

6138621147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915.

The product of its digits is 48384, while the sum is 39.

The square root of 6138621147 is about 78349.3532009040. The cubic root of 6138621147 is about 1831.0081485602.

The spelling of 6138621147 in words is "six billion, one hundred thirty-eight million, six hundred twenty-one thousand, one hundred forty-seven".