6856825651200 has 1440 divisors, whose sum is σ = 30050096670720. Its totient is φ = 1498742784000.

The previous prime is 6856825651129. The next prime is 6856825651201. The reversal of 6856825651200 is 21565286586.

It is a happy number.

6856825651200 is a `hidden beast` number, since 6 + 8 + 5 + 68 + 2 + 565 + 12 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×6856825651200² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6856825651201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1780529275 + ... + 1780533125.

It is an arithmetic number, because the mean of its divisors is an integer number (20868122688).

Almost surely, 2^{6856825651200} is an apocalyptic number.

6856825651200 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 6856825651200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15025048335360).

6856825651200 is an abundant number, since it is smaller than the sum of its proper divisors (23193271019520).

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

6856825651200 is a wasteful number, since it uses less digits than its factorization.

6856825651200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 6856825651200 in words is "six trillion, eight hundred fifty-six billion, eight hundred twenty-five million, six hundred fifty-one thousand, two hundred".