6678650879 has 8 divisors (see below), whose sum is σ = 7040937840. Its totient is φ = 6317441856.

The previous prime is 6678650873. The next prime is 6678650899. The reversal of 6678650879 is 9780568766.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6678650879 - 2⁴ = 6678650863 is a prime.

It is a super-3 number, since 3×6678650879³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678650873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256742 + ... + 281555.

It is an arithmetic number, because the mean of its divisors is an integer number (880117230).

Almost surely, 2^6678650879 is an apocalyptic number.

6678650879 is a deficient number, since it is larger than the sum of its proper divisors (362286961).

6678650879 is a wasteful number, since it uses less digits than its factorization.

6678650879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538969.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The square root of 6678650879 is about 81723.0131541905. The cubic root of 6678650879 is about 1883.1991402302.

The spelling of 6678650879 in words is "six billion, six hundred seventy-eight million, six hundred fifty thousand, eight hundred seventy-nine".