6851369448 has 672 divisors, whose sum is σ = 25817534400. Its totient is φ = 1662819840.

The previous prime is 6851369417. The next prime is 6851369471. The reversal of 6851369448 is 8449631586.

6851369448 is a `hidden beast` number, since 68 + 5 + 136 + 9 + 448 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 6851369394 and 6851369403.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 93854340 + ... + 93854412.

It is an arithmetic number, because the mean of its divisors is an integer number (38418950).

Almost surely, 2^6851369448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6851369448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12908767200).

6851369448 is an abundant number, since it is smaller than the sum of its proper divisors (18966164952).

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

6851369448 is a wasteful number, since it uses less digits than its factorization.

6851369448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 115 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 6851369448 is about 82772.9995107100. Note that the first 3 decimals coincide. The cubic root of 6851369448 is about 1899.2951631227.

The spelling of 6851369448 in words is "six billion, eight hundred fifty-one million, three hundred sixty-nine thousand, four hundred forty-eight".