6800699520 has 512 divisors, whose sum is σ = 25601184000. Its totient is φ = 1703116800.

The previous prime is 6800699513. The next prime is 6800699531. The reversal of 6800699520 is 259960086.

6800699520 is a `hidden beast` number, since 68 + 0 + 0 + 69 + 9 + 520 = 666.

It is a super-2 number, since 2×6800699520² = 92499027922656460800, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20545755 + ... + 20546085.

Almost surely, 2^6800699520 is an apocalyptic number.

6800699520 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 6800699520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12800592000).

6800699520 is an abundant number, since it is smaller than the sum of its proper divisors (18800484480).

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

6800699520 is a wasteful number, since it uses less digits than its factorization.

6800699520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 6800699520 is about 82466.3538662890. The cubic root of 6800699520 is about 1894.6014361715.

The spelling of 6800699520 in words is "six billion, eight hundred million, six hundred ninety-nine thousand, five hundred twenty".