6818139360 has 240 divisors, whose sum is σ = 25329704400. Its totient is φ = 1722415104.

The previous prime is 6818139299. The next prime is 6818139407. The reversal of 6818139360 is 639318186.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 232396 + ... + 260084.

It is an arithmetic number, because the mean of its divisors is an integer number (105540435).

Almost surely, 2^6818139360 is an apocalyptic number.

6818139360 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 6818139360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12664852200).

6818139360 is an abundant number, since it is smaller than the sum of its proper divisors (18511565040).

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

6818139360 is a wasteful number, since it uses less digits than its factorization.

6818139360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27735 (or 27718 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6818139360 is about 82572.0252870184. The cubic root of 6818139360 is about 1896.2195707897.

The spelling of 6818139360 in words is "six billion, eight hundred eighteen million, one hundred thirty-nine thousand, three hundred sixty".