6667047399 has 16 divisors (see below), whose sum is σ = 9038421504. Its totient is φ = 4370239200.

The previous prime is 6667047397. The next prime is 6667047407. The reversal of 6667047399 is 9937407666.

It is not a de Polignac number, because 6667047399 - 2¹ = 6667047397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667047397) 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 15 ways as a sum of consecutive naturals, for example, 702214 + ... + 711644.

It is an arithmetic number, because the mean of its divisors is an integer number (564901344).

Almost surely, 2^6667047399 is an apocalyptic number.

6667047399 is a deficient number, since it is larger than the sum of its proper divisors (2371374105).

6667047399 is a wasteful number, since it uses less digits than its factorization.

6667047399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13358.

The product of its (nonzero) digits is 10287648, while the sum is 57.

The square root of 6667047399 is about 81651.9895593488. The cubic root of 6667047399 is about 1882.1078853643.

The spelling of 6667047399 in words is "six billion, six hundred sixty-seven million, forty-seven thousand, three hundred ninety-nine".