6679745280 has 648 divisors, whose sum is σ = 25908337728. Its totient is φ = 1587216384.

The previous prime is 6679745269. The next prime is 6679745311. The reversal of 6679745280 is 825479766.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 91503324 + ... + 91503396.

Almost surely, 2^6679745280 is an apocalyptic number.

6679745280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6679745280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12954168864).

6679745280 is an abundant number, since it is smaller than the sum of its proper divisors (19228592448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6679745280 is a wasteful number, since it uses less digits than its factorization.

6679745280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 6679745280 is about 81729.7086743860. The cubic root of 6679745280 is about 1883.3019984519.

The spelling of 6679745280 in words is "six billion, six hundred seventy-nine million, seven hundred forty-five thousand, two hundred eighty".