6847089660 has 576 divisors, whose sum is σ = 24908083200. Its totient is φ = 1509580800.

The previous prime is 6847089637. The next prime is 6847089661. The reversal of 6847089660 is 669807486.

It is a junction number, because it is equal to n+sod(n) for n = 6847089597 and 6847089606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6847089661) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 52267795 + ... + 52267925.

It is an arithmetic number, because the mean of its divisors is an integer number (43243200).

Almost surely, 2^6847089660 is an apocalyptic number.

6847089660 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 6847089660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12454041600).

6847089660 is an abundant number, since it is smaller than the sum of its proper divisors (18060993540).

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

6847089660 is a wasteful number, since it uses less digits than its factorization.

6847089660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 6847089660 is about 82747.1429114021. The cubic root of 6847089660 is about 1898.8996084415.

The spelling of 6847089660 in words is "six billion, eight hundred forty-seven million, eighty-nine thousand, six hundred sixty".