6849686580 has 576 divisors, whose sum is σ = 24710676480. Its totient is φ = 1405071360.

The previous prime is 6849686573. The next prime is 6849686593. The reversal of 6849686580 is 856869486.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 53934477 + ... + 53934603.

It is an arithmetic number, because the mean of its divisors is an integer number (42900480).

Almost surely, 2^6849686580 is an apocalyptic number.

6849686580 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 6849686580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12355338240).

6849686580 is an abundant number, since it is smaller than the sum of its proper divisors (17860989900).

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

6849686580 is a wasteful number, since it uses less digits than its factorization.

6849686580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The square root of 6849686580 is about 82762.8333251104. The cubic root of 6849686580 is about 1899.1396455624.

The spelling of 6849686580 in words is "six billion, eight hundred forty-nine million, six hundred eighty-six thousand, five hundred eighty".