6479738667 has 16 divisors (see below), whose sum is σ = 9608686080. Its totient is φ = 4315742856.

The previous prime is 6479738659. The next prime is 6479738669. The reversal of 6479738667 is 7668379746.

6479738667 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 6479738667 - 2³ = 6479738659 is a prime.

It is a super-2 number, since 2×6479738667² = 83974026385229873778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6479738669) 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, 84183 + ... + 141584.

It is an arithmetic number, because the mean of its divisors is an integer number (600542880).

Almost surely, 2^6479738667 is an apocalyptic number.

6479738667 is a deficient number, since it is larger than the sum of its proper divisors (3128947413).

6479738667 is a wasteful number, since it uses less digits than its factorization.

6479738667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226839 (or 226833 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 63.

The square root of 6479738667 is about 80496.8239559798. The cubic root of 6479738667 is about 1864.3144408159.

The spelling of 6479738667 in words is "six billion, four hundred seventy-nine million, seven hundred thirty-eight thousand, six hundred sixty-seven".