6798399984 has 200 divisors, whose sum is σ = 20799144960. Its totient is φ = 2139426432.

The previous prime is 6798399983. The next prime is 6798400003. The reversal of 6798399984 is 4899938976.

6798399984 is a `hidden beast` number, since 67 + 98 + 399 + 98 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6798399983) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2353389 + ... + 2356275.

Almost surely, 2^6798399984 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 6798399984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10399572480).

6798399984 is an abundant number, since it is smaller than the sum of its proper divisors (14000744976).

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

6798399984 is a wasteful number, since it uses less digits than its factorization.

6798399984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 2994 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 72.

The square root of 6798399984 is about 82452.4104195869. The cubic root of 6798399984 is about 1894.3878701339.

The spelling of 6798399984 in words is "six billion, seven hundred ninety-eight million, three hundred ninety-nine thousand, nine hundred eighty-four".