6678398760 has 128 divisors (see below), whose sum is σ = 22073420160. Its totient is φ = 1602944000.

The previous prime is 6678398743. The next prime is 6678398791. The reversal of 6678398760 is 678938766.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 6678398694 and 6678398703.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108274 + ... + 158366.

It is an arithmetic number, because the mean of its divisors is an integer number (172448595).

Almost surely, 2^6678398760 is an apocalyptic number.

6678398760 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 6678398760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11036710080).

6678398760 is an abundant number, since it is smaller than the sum of its proper divisors (15395021400).

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

6678398760 is a wasteful number, since it uses less digits than its factorization.

6678398760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50219 (or 50215 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The square root of 6678398760 is about 81721.4706181919. The cubic root of 6678398760 is about 1883.1754430161.

The spelling of 6678398760 in words is "six billion, six hundred seventy-eight million, three hundred ninety-eight thousand, seven hundred sixty".