6851450400 has 144 divisors (see below), whose sum is σ = 22352881824. Its totient is φ = 1822842880.

The previous prime is 6851450341. The next prime is 6851450423. The reversal of 6851450400 is 40541586.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1117744 + ... + 1123856.

It is an arithmetic number, because the mean of its divisors is an integer number (155228346).

Almost surely, 2^6851450400 is an apocalyptic number.

6851450400 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 6851450400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11176440912).

6851450400 is an abundant number, since it is smaller than the sum of its proper divisors (15501431424).

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

6851450400 is a wasteful number, since it uses less digits than its factorization.

6851450400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603 (or 6590 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 6851450400 is about 82773.4885093047. The cubic root of 6851450400 is about 1899.3026434343.

Adding to 6851450400 its reverse (40541586), we get a palindrome (6891991986).

The spelling of 6851450400 in words is "six billion, eight hundred fifty-one million, four hundred fifty thousand, four hundred".