6178989147 has 4 divisors (see below), whose sum is σ = 8238652200. Its totient is φ = 4119326096.

The previous prime is 6178989079. The next prime is 6178989163. The reversal of 6178989147 is 7419898716.

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 6178989147 - 2⁸ = 6178988891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6178981147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029831522 + ... + 1029831527.

It is an arithmetic number, because the mean of its divisors is an integer number (2059663050).

Almost surely, 2^6178989147 is an apocalyptic number.

6178989147 is a deficient number, since it is larger than the sum of its proper divisors (2059663053).

6178989147 is a wasteful number, since it uses less digits than its factorization.

6178989147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059663052.

The product of its digits is 6096384, while the sum is 60.

The square root of 6178989147 is about 78606.5464640191. The cubic root of 6178989147 is about 1835.0129949806.

The spelling of 6178989147 in words is "six billion, one hundred seventy-eight million, nine hundred eighty-nine thousand, one hundred forty-seven".