6894648720 has 320 divisors, whose sum is σ = 24290945280. Its totient is φ = 1819584000.

The previous prime is 6894648701. The next prime is 6894648737. The reversal of 6894648720 is 278464986.

6894648720 is a `hidden beast` number, since 6 + 89 + 464 + 87 + 20 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27468595 + ... + 27468845.

It is an arithmetic number, because the mean of its divisors is an integer number (75909204).

Almost surely, 2^6894648720 is an apocalyptic number.

6894648720 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 6894648720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12145472640).

6894648720 is an abundant number, since it is smaller than the sum of its proper divisors (17396296560).

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

6894648720 is a wasteful number, since it uses less digits than its factorization.

6894648720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 6894648720 is about 83034.0214610855. The cubic root of 6894648720 is about 1903.2859776472.

The spelling of 6894648720 in words is "six billion, eight hundred ninety-four million, six hundred forty-eight thousand, seven hundred twenty".