6818448147 has 24 divisors (see below), whose sum is σ = 10578951936. Its totient is φ = 3895003728.

The previous prime is 6818448113. The next prime is 6818448149. The reversal of 6818448147 is 7418448186.

It is not a de Polignac number, because 6818448147 - 2¹² = 6818444051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6818448147.

It is not an unprimeable number, because it can be changed into a prime (6818448149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644938 + ... + 655424.

It is an arithmetic number, because the mean of its divisors is an integer number (440789664).

Almost surely, 2^6818448147 is an apocalyptic number.

6818448147 is a deficient number, since it is larger than the sum of its proper divisors (3760503789).

6818448147 is a wasteful number, since it uses less digits than its factorization.

6818448147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14927 (or 14920 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 51.

The square root of 6818448147 is about 82573.8950698100. The cubic root of 6818448147 is about 1896.2481963468.

The spelling of 6818448147 in words is "six billion, eight hundred eighteen million, four hundred forty-eight thousand, one hundred forty-seven".